[ 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)] When this unit is placed on (GC) during the battle your vanguard was attacked by your opponent's vanguard, you may pay the cost. If you do, this unit gets [Shield]+10000 until end of that battle for each of your opponent's open (RC).