Critical Hits on Damage Over Time Attacks?

[Yomo Kimyata]

Can anyone tell me how crits work on attacks like Guarded Spin or Eye of the Storm for Staff Fighting?  Is a crit only on the first tick of damage, is there a chance for a crit on each tick of damage, other?  Thanks!

[Roderick]

All of the crit damage happens up front, in a single hit. If the damage would normally be two different types (Such as a Dark Melee punch that does Negative and Smashing), they are combined into a single hit of one damage type (Dark Melee has pure Negative crits). If there is bonus damage over time (Like Fire Melee), it may give extra damage over the base amount, but that will, again, be built into the single hit. The crit damage is increased by slotting and damage buffs, but is not increased by damage procs; Procs in IOs, from Incarnate abilities, or the added fire damage from Fiery Embrace are only added once if the attack crits, not twice.

 

You can look at the detailed info on any given power to see exactly what the crit damage will be. It is listed at the bottom as something like "5.00% chance for 22.10 negative energy damage on target after 2.00s delay Only against minions and underlings" (Crits against Lieutenants, Bosses, EBs and AVs will be the same, but a 10% chance).