Mythiarq, Merrylish

[AUTO]:When this unit is placed on (RC) by the ability of your card with "Mythiarq" in its card name, if you have a vanguard with "Mythiarq" in its card name, [COST][Counter-Blast 1], draw a card, and until end of turn, when your opponent would call cards from hand to (GC) for the battle this unit attacked, they must call two or more at the same time.