All champions in your pool lose 2 levels until the end of the current turn. The using champion gains 2 levels for each champion in your pool until the end of the current turn. (Def 4)
Copyrights:
TSR
Wizards of the Coast
Cannibalize is an interesting power that can equal lots of levels, but can also be dangerous to play.
The power starts by taking away 2 levels from each champion in this player's pool, which can be a serious pain, especially as it only drains adjusted level, so it doesn't make more champions available to fight the Living Wall (58/PO).
This card is a gamble. While it hurts all but one champion you own, it makes that champion fairly big, if your pool is large. As such, this is a card you'll want to use with your first champion in a multiround battle.
Being defensive, very few champions are immune to the power, making it even more dependable. However, when compaired to Murlynd's Spoon (65/IQ), it would be wiser to use the non-removable spoon unless you have at least 7 champions in play (1 in battle, 6 in pool, +12 bonus).
If one has that many champions, usually the player is enough of control to have better combat cards. Therefore, this is not the best card to use, and should probably be avoided for better iconic and special power cards unless you MUST focus on psionic power cards (such as for a deck built around the High Master Illithid (96/RL)).