Brain Drain (Tribes, Legacy Card, #32) is a rare Dark magic card with 2 attack and 4 defense.
Card Effect
Deplete 1 NPC.
For the rest of the battle, Undead you play deal +1 damage.
Card Description
Removing the brains from one's other minions for the purpose of enhancing a single undead creature's mental capacity is a bold and daring move. It's also insane. But sanity never unleashed hordes of zombies upon an unsuspecting world, or made a fellow supreme master of the dark arts. So necromancers have to be more eclectic in their ways of thinking.