So there is a wide range of dummies to help you develop your DPS. But nothing at all to help you develop your healing. How about a dummy for training healers, to help you get your HPS up. Maybe it starts out at like 1 HP, and you have to heal to its full potential. And once it's fully healed, it grows angel wings, or sprouts a halo, or casts a golden buzzer glow all over you, and then goes back to 1 HP.
Favourite NPC: Wine-For-All
Mostly PC-EU , with a lonely little guy on NA.