Cool ideas, but imo all i needs is to actually do damage.
Some sort of poison build would be cool, so maybe it could also allow certain skills, a little like the sorc overload bar.
It could be a stamina morph that does poison aoe and also boosts your weapon attacks with poison damage.
@Balael it does almost no damage, and all the while all you can do is stand there. It's very close to useless.