Yitomei, Hunter of Fangs

Whenever an opponent casts a creature spell with converted mana cost 5 or greater, choose one: lifelink, deathtouch, first strike, vigilance, reach, or trample. If all of those abilities have been chosen, you may choose: indestructible, hexproof, or double strike instead. Yitomei gains the chosen ability.
"A bite without fangs is worthless."