Could this get a fraction of wd% to Canister (so it benefits from all the leech on Harbinger of Souls) or some direct leech on Canister itself (so leech RR on Rattosh isn’t wasted)?
I’m not in the camp of ‘fix everything with leech’ but a Vitality based build fits the theme more than anything else. Sadly can’t provide the GT link as I was quite disillusioned with the results.
The only semi-reliable sources of leech that this Defiler would have are from Constellations (Bat / Wendigo / Scales). With the notion that Vitality Blackwater Cocktail has a lot of synergies with that Canister playstyle so you’d probably just opt out of Scales altogether (wasted flat RR).
I’m somewhat fine with not being able to hard cap Canister itself - that comes with this being off-damage type. But not being able to reliably leech on a Vitality build generally feels like ass. It’s not like you can weave some attacks in-between Canister casts, that Offhands suggests full pseudo spam playstyle.
Reset mechanic itself is cool as hell, it being locked to a Defiler - fine; it having to fight through Vitality resistances… ugh fine; it having to use Dryad & some weak ass supplementary leech Constellations just so stay alive - not so fine.
Sidenote, you can see that proper Canister spam drains your energy quite rapidly (that’s with 15 points in Ulzuin’s Chosen & Seal of Annihilation for reduced energy cost). Asking for additional energy cost reduction on the off-hand would probably be an overkill?