Ignis Heat, the True Dracowarrior (MACR-EN021) - Maximum Crisis Unlimited

To Tribute Summon this card face-up, you can Tribute a Continuous Spell/Trap Card you control, instead of a monster. Once per turn, during either player's turn, when your opponent activates a card or effect while you control this Tribute Summoned monster: You can take 1 "True Draco" or "True King" Continuous Spell Card from your Deck, and either activate it or add it to your hand.