flavorText: It preyed on anything it could sink its teeth into.
name: Cresting Mosasaurus
printings: REX
text: Emerge {6}{U} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)
  When this creature enters, if you cast it, return each non-Dinosaur creature to its owner's hand.
type: Creature — Dinosaur