water spout To Proc or Not To Proc

[r0y]

Recently, I was playing around with Water Spout from the Leviathan Mastery and saw that many people double up on the -res procs (one Achilles Heel, one Annihilation); but was wondering if damage procs work well in there, too.

 

So I /respec a scrapper (claws/sr) and added it with the following damage procs:

Posi (PB) + Javelin (JV) + Bombardment (Bomb) + Lady Grey (LG) + Explosive Strike (ES) + Overwhelming Force (OF).

 

I then went to DA and dropped it on a level 54 mob group (few Banespawns and a Elder of Sorrow):

 

Power dropped at x:18:41  (eighteen minutes after the hour, 41 seconds in).  Power finished at x:19:11 (30s duration).  In that duration the procs went off as follows (in order):

:42 - LG (51.65), Bomb (77.48)

:52 - ES (64.57), ES (64.57), LG (51.65), Bomb (77.48), OF (KD), ES (64.57), JV (64.57)

:02 - Bomb, Bomb, JV, PB, LG

 

So because it's a pseudo pet, the every-ten-seconds chance applies.  The :42 marker is the "drop" and the power started doing it's own damage (ticks of 6.85) at :43.  So between the drop and the next chance for procs (10s), how much did the power do via DoTs?  It did 28 ticks of 6.85 or 191.8 damage to the mobs.  Granted, more mobs = more damage, but similar for proc chances, unless I'm wrong on how it's calculated.

 

Also in that first 10s, my T3 Reactive Interface hit 5 times for 14.45 damage, for a total of 72.25.  It did not go off the second 10s (:52), but did on the third (:02).

 

So I am wondering, if I just improve my damage (say, 5 Annihilations + 1 Achilles) would the performance be better?  What do most people usually run for Water Spout?

 

Here's the raw capture log:

Spoiler

2020-06-06 09:18:41 You activated the Water Spout power.
2020-06-06 09:18:42 Water Spout:  HIT Banespawn! Your Water Spout power is autohit.
2020-06-06 09:18:42 Water Spout:  HIT Banespawn! Your Water Spout power is autohit.
2020-06-06 09:18:42 Water Spout:  HIT Elder of Sorrow! Your Water Spout power is autohit.
2020-06-06 09:18:42 Water Spout:  You hit Banespawn with your Reactive Interface for 14.45 points of Fire damage over time.
2020-06-06 09:18:42 Water Spout:  You hit Banespawn with your Touch of Lady Grey: Chance for Negative Energy Damage for 51.65 points of Negative Energy damage.
2020-06-06 09:18:42 Water Spout:  You hit Banespawn with your Bombardment: Chance for Fire Damage for 77.48 points of Fire damage.
2020-06-06 09:18:42 Water Spout:  You hit Banespawn with your Reactive Interface for 14.45 points of Fire damage over time.
2020-06-06 09:18:43 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:43 Water Spout:  You hit Banespawn with your Reactive Interface for 14.45 points of Fire damage over time.
2020-06-06 09:18:43 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:43 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:44 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:44 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:44 Water Spout:  You hit Banespawn with your Reactive Interface for 14.45 points of Fire damage over time.
2020-06-06 09:18:45 Water Spout:  You hit Banespawn with your Reactive Interface for 14.45 points of Fire damage over time.
2020-06-06 09:18:45 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:46 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:46 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:46 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:46 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:46 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:47 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:47 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:47 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:49 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:49 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:49 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:49 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:50 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:50 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:50 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:51 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You knock Spirit of Sorrow off their feet with your Overwhelming Force: Damage/Chance for Knockdown/Knockback to Knockdown!
2020-06-06 09:18:52 Water Spout:  You hit Spirit of Sorrow with your Explosive Strike: Chance for Smashing Damage for 64.57 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You hit Banespawn with your Explosive Strike: Chance for Smashing Damage for 64.57 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You hit Banespawn with your Touch of Lady Grey: Chance for Negative Energy Damage for 51.65 points of Negative Energy damage.
2020-06-06 09:18:52 Water Spout:  You hit Banespawn with your Bombardment: Chance for Fire Damage for 77.48 points of Fire damage.
2020-06-06 09:18:52 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You knock Banespawn off their feet with your Overwhelming Force: Damage/Chance for Knockdown/Knockback to Knockdown!
2020-06-06 09:18:52 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You hit Banespawn with your Explosive Strike: Chance for Smashing Damage for 64.57 points of Smashing damage.
2020-06-06 09:18:52 Water Spout:  You hit Banespawn with your Javelin Volley: Chance for Lethal Damage for 64.57 points of Lethal damage.
2020-06-06 09:18:53 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:53 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:54 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:54 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:54 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:54 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:54 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:55 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:55 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:55 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:55 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:55 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:55 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:55 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:55 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:55 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:55 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:56 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:57 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:57 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:57 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:57 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:58 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:58 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:58 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:58 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:58 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:58 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:58 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:58 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:58 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:58 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Spirit of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:18:59 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:00 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:00 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:00 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:00 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:01 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:01 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:01 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:01 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:01 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:01 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:01 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:01 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:02 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:02 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:02 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:02 Water Spout:  You hit Banespawn with your Bombardment: Chance for Fire Damage for 77.48 points of Fire damage.
2020-06-06 09:19:02 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:02 Water Spout:  You hit Elder of Sorrow with your Bombardment: Chance for Fire Damage for 64.57 points of Fire damage.
2020-06-06 09:19:02 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:02 Water Spout:  You hit Banespawn with your Javelin Volley: Chance for Lethal Damage for 64.57 points of Lethal damage.
2020-06-06 09:19:02 Water Spout:  You hit Banespawn with your Positron's Blast: Chance for Energy Damage for 64.57 points of Energy damage.
2020-06-06 09:19:02 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:02 Water Spout:  You hit Banespawn with your Touch of Lady Grey: Chance for Negative Energy Damage for 51.65 points of Negative Energy damage.
2020-06-06 09:19:02 Water Spout:  You hit Banespawn with your Reactive Interface for 14.45 points of Fire damage over time.
2020-06-06 09:19:03 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:03 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:03 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:03 Water Spout:  You hit Elder of Sorrow with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:03 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:03 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:04 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:05 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:05 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:06 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:06 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:07 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:07 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:08 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:08 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:08 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:11 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.
2020-06-06 09:19:11 Water Spout:  You hit Banespawn with your Water Spout for 6.85 points of Smashing damage.

 

Edited June 6, 2020 by r0y

[r0y]

So I went to the Test Server on my Plant/Storm controller.  Respec'd into Water Spout and ran some short tests on a Rikti Pylon.

 

1st Set:  5 Annihilations + 1 Sudden Acceleration (KB-KD).  This uses 1 -res proc in Annihilation, but uses a KB-to-KD proc from Sudden Acceleration, as I'd use it that way on live.

2nd Set:  5 damage procs + 1 Sudden Accelertaion (KB-KD).  This is using Posi, Javelin, Bombardment, Lady Grey, and Explosive Strike in addition to the KB-KD proc.

 

I hit the Pylon with two (2) of each set/configuration.  All other powers/incarnate/buffs/etc were the same for all tests.  Results/Summary:

Spoiler

 

Granted, it's only two runs for each setup, but I think I'm convinced that damage procs may be the way to go - especially in a fire and forget type power that Water Spout wants to be.  I know the benefit from -Res for that short period of time will apply to other damage and teammates' attacks, but it just did not seem to be debuffing for very long.

 

Oddly, in the first run (Set 1), I got a spam-msg of "Water Spout:  You reduce your targets damage resistance temporarily" (eight times in a row).  In the second run (Set 2), I didn't see ANYTHING about a debuff, but 16 of the 60 ticks were slightly larger (6.74 vs 6.57).  I am assuming that it's a res debuff, but I don't know.  If it is not, then the Set 2 run would be 107.84 damage lighter, and only enhance my decision to go damage procs.

 

I do not know if more damage-procs would fire off if there were more than 1 mob (the pylon).  I'm feeling like it's not, as Water Spout is a pseudo pet, it just checks for a chance to fire off every 10 seconds and either does or does not, and applies the proc damage (if successful chance) to whatever mob the pseudo pet happens to be damaging at that time.  I could be off on this - if so, please let me know how damage procs work in a pseudo pet with multiple mobs.

 

[Riverdusk]

I haven't really done much testing on procs in tornado or water spout, but one big difference between the two to note.  Tornado does knockback, water spout only does knock-up.  So, I tend to skip slotting a kb to kd IO when I take water spout.  I can maybe see some still taking it as the knock-up is high enough of a mag that it can still be somewhat annoying to melee when it flings them up REALLY high sometimes, but I find there are better ways to use that slot since it doesn't scatter things around nearly so much as tornado does.