Solution to Healer design (maybe)

[Raikai]

I don't think the problem is uniqueness. Each current healer is (read: was, at least one expansion ago) unique enough to stand on its own when designed correctly.

There's still a very base thing that could be different. Every healer's dps rotation is very simple. That's okay, I don't mind it (as long as healing is engaging), however why it needs to be the exact same copy Nuke spam + 30s dot for all four of them?