Supreme Heavenly Emperor Dragon, Advance Guard Dragon (G-FC04/031EN)

[G guardian] (Usable when both fighters' vanguards are grade 3 or greater, and the number of face up G guardians in your G zone is three or less) -Opponent Turn's Guard Step-[Choose a card with "Heal" from your hand, and discard it] Call this card to your (GC) from face down. [AUTO] Generation Break 1:[Soul Blast (1) & Choose a face down G guardian from your G zone, and turn it face up] When this unit is placed on (GC), you may pay the cost. If you do, choose one of your opponent's [Rest] grade 1 or less rear-guards, and retire it.