Supreme Ruler of the Storm, Thavas

:When your G unit , choose up to one card from your hand, call it to , choose one of your rear-guards, until end of turn, it gets ":Resist", and if that rear-guard has the wave ability, it gets ":This unit can attack from the back row.". Wave-1st or 4th time (Active during the specified battles of each turn): 1 At the end of the battle that this unit attacked, you may pay the cost. If you do, this unit.