Castle your king into the opponents side of the board, behind the Wall of Flesh. When it passes through the whole board, your opponent will have wasted a Guide Doll and your king will be in the clear.
This isn't as bad as you think. It's an endurance fight. Have everyone start rotating out their defensive buffs, and any kind of heals they got. You only need to make it for 45 seconds, then it'll go into the Rest phase. Burn that bitch, get the Solemn Key, and be ready.
I asked it to say my name but that thing refuses to answer me, is it stupid? Can that motherfucker not speak english? I somehow turned black btw don't know how.