Stern Mentor | 77 | Avacyn Restored

Set: Avacyn Restored
Rarity: U
#: 77
Creature Type or Sub Type: Creature — Human Wizard
P: 2
T: 2
Rules Text Contains: Soulbond (You may pair this creature with another unpaired creature when either enters the battlefield. They remain paired for as long as you control both of them.)
As long as Stern Mentor is paired with another creature, each of those creatures has "T: Target player puts the top two cards of his or her library into his or her graveyard."