Super Cosmic Hero, X-carivou

(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 , if your opponent's attacking unit's is 30000 or greater, this unit gets +10000 until end of that battle. Then, choose a card from your hand, and you may discard it. If you do, choose one of your vanguards, and it gets +4000 until end of turn.