Kiora, Sovereign of the Deep

Description

Kiora, Sovereign of the Deep (MAT-85) is a legendary Merfolk Noble creature from the March of the Machine: The Aftermath set. She has vigilance and ward {3} and her triggered ability lets you look at the top X cards and potentially cast a spell with mana value less than X for free whenever you cast a Kraken, Leviathan, Octopus, or Serpent from your hand. As a five-mana green-blue legend with a 4/5 body, she supports big sea-creature–focused decks by generating additional free casts and card selection.