Creature - Dinosaur/Skeleton/Horror Menace <CR> Whenever Dread Osseosaur enters the battlefield or attacks, you may mill two cards. (You may put the top two cards of your library into your graveyard.)
Creature - Dinosaur/Skeleton/Horror Menace <CR> Whenever Dread Osseosaur enters or attacks, you may mill two cards. (You may put the top two cards of your library into your graveyard.)
