How about a non-support ranged dps?

[Shurrikhan]

I think if said healer had ways to mitigate those types of spells, it could work. Maybe a healer version of Hallowed Ground? Or even just something like "Reduces one melee ranged attack by 50%". If Dancer were the melee healer, then I imagine a lot of their mechanics would involve dodging. So that's another way around it.

The problem is these are moves specifically meant to kill anyone near the healer, forcing them to max out their healing range.