Frost and Flame Dragon (SGX2-ENE04) - Speed Duel GX: Midterm Paradox 1st Edition

Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by banishing 1 FIRE and 2 WATER monsters from your Graveyard, and cannot be Special Summoned by other ways. Once per turn: You can discard 1 card to target 1 monster on the field; destroy that target..