Maelstrom, Old One Seer

Whenever Maelstrom, Old One Seer deals combat damage to a player or planeswalker put a card you own from outside the game into your hand.
{1}{u/b}: Exile Maelstrom, Old One Seer. If Maelstrom is currently in exile return Maelstrom to the battlefield. You may activate this ability if Maelstrom is in exile.