use adrenaline 4 doses, compact the room to make him lose health without dying, use adrenaline again, then right as he dies use scarabs for 15K. (glitch: when the scarabs are activated, he doesnt die until it ends)
Would be better if you could actually die, then there would be an experience in which you have to stay away from the front of a monster or you get pwnd.
The odds seem unfairly geared in your opponents direction. They completely ignore spawn times, summon many of one kind at once (had to kill 8 zombies where there was nothing just a moment before), and seem to have more than 3 cards, even at the start of the game.
3/5 for unfairness.