Vashj all over again? - Say it ain't so!
MimironFFA automatically switches to FFA loot for Mimiron phase 3 and back to whatever it was before afterwards so you can loot those cores without hassle.
Uses boss yells as triggers, if you want it to work in your language, check http://www.wowace.com/projects/mimironffa/localization/.
Requires you to be the raid leader! Only the raid leader can change the loot method!