Hellkite Courser is a mythic Creature — Dragon card from Tarkir: Dragonstorm Commander (TDC), collector number 218. Current market price: $4.31, TCGplayer market prices via Scryfall.
Flying When this creature enters, you may put a commander you own from the command zone onto the battlefield. It gains haste. Return it to the command zone at the beginning of the next end step.