Kylo Ren Unmasked

I'm only 45 lvl. Have 6 abilities for each toon and gear lvl 6. Half toons are 4 star others 3 stars. Unmasked healed had 4 ability lvls in each ability. He healed 6% for every hit he took. My best attack squad only got him down 50% before he started picking them off. He had 30% counter and two special damage abilities with built in heals. 20% crit and speed with turn meter increase on crit of course. Advantage for 2 turns when he gets hit. Now, all this may equal out at lvl 85. But for the lowbies, this is not balanced. I'll check my stable, but I don't think I have enough toons (if any) to stop his healing. Only 45 lvl here. Only have 20 toons developed. Just picked up 6 more this week but they need gear and abilities. I'm sure at 85 lvl you could easily put together a team to stop his heals. But not at 45. He's a stopper in GW. He's too OP at 45.