Mark of the 13th Clan

Enchant Creature
Grant target creature +2/+2 and Shisa: Gain +2/+2, Gain +1/+1 (If this creature destroys another creature, it activates the first part of this ability. Further kills activate the second part of the ability)
They do not exist, an avenger clan? Mere hogwash to inspire the rats to fight us, and die.