Yeah, so this is old news because it was over the weekend, but since most of you haven’t got a clue what I’m talking about, it won’t matter.
This dude is a boss in zone 5. It takes 1000 energy to do the quest, which means you have to get to level 181 before you can even fight him. He’s tough. Plays multiple cards in a turn that hit for 30+ each and has a self-titled NPC card that banishes cards it depletes. It took me two attempts to beat him.