Weelf the Swap Witch

HexGuard: When weelf is targeted by an opponent's spell or ability, she may swap that spell or ability to another target instead.

Swap Mastery: Once per turn, Weelf can swap power and toughness with any creature on the battlefield.

Gravecall: If Weelf would be put into your graveyard from anywhere, you may pay 3 life and exile a creature from your graveyard to return Weelf to your hand.