Sacred Tree Dragon, Rain Breath Dragon

[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 card with HEAL from your hand, and discard it] Call this card to your (GC) from face down.
[AUTO]:When this unit is placed on (GC), choose up to one card from your hand, call it to (RC), and that unit gets [CONT](RC/GC):Resist until end of turn. If you called a card, this unit gets [Shield]+5000 until end of that battle.