Koh, the Facestealer

Lifelink
Whenever Koh blocks a creature or becomes
blocked by a creature, you may pay {2}{b}. If you
do, Koh gains all abilities of target blocked or
blocking creature. That creature loses all abilities
while Koh, the Facestealer remains on the battlefield.
"It's been a long time since I've added a child's face
to my collection."