Durable Barrier, Hecaton Gyace

(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] Heal" from your hand, and discard it] Call this card to your from face down. :When this unit is placed on , choose up to three cards from your drop zone or soul with different grades, and put them on the bottom of your deck in any order. If you put three cards, this unit gets +10000 until end of that battle.