Hi,
i'm following your journey and am looking at my current plant/storm/leviathan build; atm the endurance usage is killing me and i feel like i must use Ageless.
Another option you could pick, and i'm probably going to respec to, is Psionic Mastery:
Indomitable will is mag 10 protection vs Hold/Stun/Sleep/Terrorized (still have to slot KB protection), can easily be made perma and fits a Luck of the Gambler +recharge
Mind over Body is a basic S/L/Psi shield
World of Confusion is a small radius, very cheap confuse toggle, not 100% sure how good it is but the end cost is nearly free and you can stack confuse on tougher targets this way
Psionic tornado is slow animation time AOE bwith knockup, a good spot to slot FF proc (though there's many kb powers in storm already)
You won't have the most damaging attacks from this build but are free to pick something other than Rune of Protection or Clarion as Destiny, Ageless solves many of /Storm's issues
I do not have Spirit Tree but i'm considering it, i was using spore burst with the chance to heal proc "Sandman" and it honestly works VERY well, seems to proc almost every time, sleep is autohit anyway so barely needs slotting.
I like Vines and other AOE hold most with the +2mag hold proc in it so might consider that one too.
I do worry about single target damage a bit, using both Entangle and Strangle alone, with enough recharge, will be my main single target chain. Entangle is decent for building Containment but on /storm with all the knockbacks etc, rooting a target incrases dps by a lot
Would love to hear opiinions and experiences with World of Confusion from other controllers