Merfolk Windrobber

Merfolk Windrobber

Creature - Merfolk Rogue | Power/Toughness: 1 / 1 (CMC 1)
Flying
Whenever Merfolk Windrobber deals combat damage to a player, that player mills a card. (They put the top card of their library into their graveyard.)
Sacrifice Merfolk Windrobber: Draw a card. Activate only if an opponent has eight or more cards in their graveyard.