Gartrian, Mage-Warrior

First strike
Whenever Gartrian, Mage-Warrior attacks, you
may pay {w/u}{w/u}{w/u}{w/u}. If you do, return target creature defending player controls to its owner's hand. That creature's owner can't cast spells with the same name as that creature until your next turn.
"I didn't want to learn this magic. But believe me, it comes in handy."