I was playing the Moroes non-heroic, and was down to my last 3 hunter green color mercs, Leeroy, Bwonsamdi, and Garona. And also Cookie was on the bench. Cookie also had the “spawn two of the useless minions” treasure.
I had the Hysteria treasure reward with Bwonsamdi, so I thought it would be easy game at the boss, just use Leeroy’s ability to become immune while attacking, then next turn play hysteria and the game should have been won, even if Leeroy was my only minion left alive. I even wisely used the Irrefusable Deal that alters the speed of abilities next turn, so next turn the enemies speed was all 6 or higher I think, and my hysteria was at 5 speed. I was able to attack with both Garona at 3 speed, Leeroy at 2 speed that increases his attack, then used Hysteria AND IT DIDN’T CLEAR!!!
It lasted until one of my minions died (Garona that had deal damage deathrattle) and then Leeroy stopped attacking!?
Leeroy was killed, but I managed to finish off the last two, boss and the one red add with Cookie and Bwonsamdi, but it’s frustrating when things don’t work right.