Quote Originally Posted by Unregistered View Post
I don't think you can overwrite buffs at all, unless there is a different phase for HoTs and DoTs that is separate from the attack phase?

If I use Orlean Call (from Joan) and then I use Divine Solar Shield+ (from Amaterasu), my regeneration for that turn stays at 250 instead of increasing to 400.
This thread is about debuff overwriting. As for overwriting buffs, regeneration is a weird case, I'm not really sure how that works. However you can overwrite some buffs. For example if you use fenrir active (that grants increased ability damage) and then oceanus ability damage increase spell, it will overwrite.