This is the Balor’s debut. The request was actually for the leader of the Balors, but I’m afraid that no picture of him seems to exist at the moment aside from fan-art so I instead substituted the generic Balor monster. While Balor could deal a lot of damage if he got close to Muk, Muk has too many long range options to lose here. A good Hyper Beam would deal a lot of damage to Balor and let’s not forget about Thunderbolt or Muk’s other options. Muk can’t move all that much, which hurts him a little, but those attacks should really give him the edge. Muk wins.