Originally Posted by Myrdin

I use Crit. up on a full crit team in DMM. Cant complain once the red number ultimates start to roll in.
Healing affects only girls who either have a self/healing ability (none of those yet on Nutaku I believe) or Lifesteal ability.
Defense up is good if you have girls like BB who has those super strong defensive and Guard abilities once Bloomed.

Healing affects attacks with life drain and according to the description, also affects healing from panels (chocolate nodes for instance).