[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]:[Counter Blast (1) & Soul Blast (1)] When this unit is placed on (GC), you may pay the cost. If you do, choose one of your opponent's attacking units, and it gets [Power]-10000 until end of turn. If a vanguard was chosen with this effect, this unit gets [Shield]+5000 until end of that battle.