Zareth San, the Trickster
{3}{U}{B}Legendary Creature — Merfolk Rogue
Flash {2}{U}{B}, Return an unblocked attacking Rogue you control to its owner's hand: Put this card from your hand onto the battlefield tapped and attacking. Whenever Zareth San deals combat damage to a player, you may put target permanent card from that player's graveyard onto the battlefield under your control.