Sansa Stark, the Caged Wolf

Howl of the Pack ( If a creature you control is put into a graveyard this turn, then this card untaps during the next player's untap phase)
{t}: Target player gains control of Sansa Stark, the Caged Wolf
The player who controls Sansa Stark, the Caged Wolf can not attack the player who owns Sansa Stark, the Caged Wolf.