Heatwave

"Heatwave" (ヒートウェーブ Hītou~ēbu) is a keyword exclusive to the Kagerō clan, and introduced in SS Mythical Booster 01: Breath of Purgatory.

How it Works
A "Heatwave" ability remains active and can only be used as long as at least one of your opponent's read-guards have been retired this turn.

Grade 4

 * Supreme Heavenly Emperor Dragon, Dragonic Overlord "the Fragment"