Aero Halberd DragonRR

[AUTO]:When this unit is placed on (RC) from drop, Energy Blast (3), choose one of your opponent's back row rear-guards, and retire it. [AUTO](Back Row RC)[Once]:When any player's unit is retired from a front row (RC) in the same column as this unit during your turn, you may [Stand] this unit. If you [Stand] it, at the end of that turn, put this unit into soul.