Monster Master

Monster Masters are villains (whether they are human-like, monstrous, or supernatural) who might or can command creatures and monsters of different sizes or powers, such as Kaiju or packs of rats, but they are linked by having command over all kinds of monsters and creatures to do their bidding.

Monster Masters are different from Summoners in a state of constant command. That is to say, if someone calls forth monsters from a different place or dimension, he or she is a summoner; if he or she has an army of monsters with him or her, they are a Monster Master.