[AUTO]:Forerunner (When a unit of the same clan rides this unit, you may call this unit to (RC)) [ACT](RC):[Put this unit into your soul] Choose one of your vanguards, and it gets "[AUTO](VC):[Counter-Blast 1] During your turn, when your opponent's rear-guard in the front row is put into the drop zone, and your vanguard is [Legion], you may pay the cost. If you do, choose one of your opponent's rear-guards in the same column as the (RC) that rear-guard was on, and retire it." until end of turn.