Healer Aggro

[Sapphidia]

I cast regen on all party members at all time and focus my cure II or III on tank (after the tank gets firm hold of aggro), whenever adds comes at me i use Shroud of Saints to decrease the aggro, if all that fails, i would run to tank and hope tank would pick the rest of adds off me, and try not to over heal, that generates aggro.

You shouldn't really keep regen on all party members. Overheal generates aggro, but regen overheal does too. Every tick of a Regen on a player adds that heal amount to the threat of all enemies in combat. If you've got 4 regens ticking at once which arent healing anything, your threat will be through the roof.