Nightmare is the real issue, revoking this claim for now
Upped minotaur is an unprecedented amount of efficiency when it works. Filling opponent's hand isn't hard enough, & one still benefits well from the denial (compared to Orochi where one has to either self-lobo or self-devour)
I'm unsure the best route to go, be it
Reduce attack by 1
Increase cost by 1
Reduce health further
Reduce cost & attack could work