But in reality, three stacks of 333 behemoths will attack you. During your turn, you cast a mass slow spell and then hypnotize the stack closest to you. BUT! The hypnosis ends after 3 turns, which means you won't have much time to cast other spells. Also, when the number of stacks is odd, there will always be a certain maximum number of creatures remaining in one of them that you will have to kill directly with your mage, and then you'll have to come up with another plan, distract, summon, or do something to prevent that stack of 50-100 behemoths from tearing you apart like a wet rag. Is that what you call "easy"?
But in reality, three stacks of 333 behemoths will attack you. During your turn, you cast a mass slow spell and then hypnotize the stack closest to you. BUT! The hypnosis ends after 3 turns, which means you won't have much time to cast other spells. Also, when the number of stacks is odd, there will always be a certain maximum number of creatures remaining in one of them that you will have to kill directly with your mage, and then you'll have to come up with another plan, distract, summon, or do something to prevent that stack of 50-100 behemoths from tearing you apart like a wet rag. Is that what you call "easy"?