Holy Dragon, Laserguard Dragon (DZ-PS01/027EN) [DZ-PS01: Premium Deckset "Jewel Knight"]

[G Guardian] (Usable when both fighters' vanguards are grade 3 or greater, and the number of face up G guardians in your G zone if three or less) -Opponent Turn's Guard Step-[Choose a "HEAL" from your hand, and discard it] Call this card to your (GC) from face down. [AUTO]:When this unit is placed on (GC), if you have one or more grade 2 rear-guards, this unit gets [Shield]+5000 until end of that battle.