NRG - mp5 Power Button
Thaliz makes resurrection faster by prioritizing other ressers first, using one-button resurrection.
Assign healers to tanks or tank targets via UI, and post to raid.
Buffalo - buffing addon for Druids, mages, priests ...
SotA stores DKP in guild or officer notes, making easy for everyone to check their own DKP without an addon or a DKP officer online.