Mixed Element, Colburn (G-BT13/052EN) [Ultimate Stride]

[ 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]:[Choose a card from your hand, and discard it] When this unit is placed on (GC) during the battle that your opponent's vanguard attacked, you may pay the cost. If you do, this unit gets [Shield]+5000 until end of that battle for every two cards in your opponent's hand. (This card is from all clans and nations.)