5*r4???

Giantwalrus56

I have a ton of iso about to expire. Wondering which 5* to r4. Rhulk( have domino), GR( have blade) or Ghulk? I also have mystic awakening gem, if that influences desicions. I've explored act 5 & done 6.1.1, aiming for cavalier. Any help would be appreciated

manveerthereal

Go for rhulk or Ghulk Idk who gr is.