From the publishers web-site:

Are you tired of beating up on wimpy monsters? Of course not: you're a munchkin!

Are you tired of watching your opponents beat up on wimpy monsters? Of course you are: you're a munchkin!

Munchkin Monster Enhancers gives you 15 cards to make the monsters tougher and send the other players crying for their mommies. With 13 favorites from More Good Cards, now in full color, plus two brand new cards, Hollywood and Ultimate, this set is a monster's dream and a player's nightmare. Until it comes time to loot the bodies of those enhanced monsters . . . extra treasure is good!

And, unlike certain other performance enhancers, this set is fully legal in international competition!

This is an expansion for Munchkin, not a stand-alone set. Munchkin Monster Enhancers is not collectible or randomized; every pack is the same as every other.

Other

This set contains reprints of the cards there were unique to Munchkin 7: More Good Cards and which were not included in the reprint of Munchkin Blender as Munchkin 7: Cheat With Both Hands. See the description of Munchkin 7: Cheat With Both Hands for details.

Part of the Munchkin series