trick to stack gregor faster

use gregor, dash and some cc heroes in the team, remove runes and change weapons until the day ranges of ur heroes are such that gregor can't beat them but dash can, rewind, and start the game in the rewinded day where ur speed is increased by the rewind mechanic - resulting in ur stacking him faster.

just gotta pick a day the small mobs aren't resistant enough to the cc of ur choice~. I tried on first try Elaine max and chandler cussack - it was both abit too much yet not enough - a hank and tornado will work out~...