[Slydria]

I like the idea of trading the heal for a benefit like how the other Lantern spells trade damage for Gentle Embers.

I think lowering debuff duration and increased heals however are too strong. Immunity to Life Steal or Poison are both nice though.

I have a couple of ideas:

Gentle Embers Phoenix could offer no healing, not go into cooldown and grant Poison Immunity for 2 Rounds.

[strike]Gentle Embers Phoenix could offer no healing, retain it's 3 Round Cooldown and grant Death Immunity for 2 Rounds. (When I say Death Immunity, this would simply mean while it's active, you cannot be reduced below 1HP.)[/strike]

EDIT: Had second thoughts about the other option.