[AUTO](RC):[Counter-Blast 1] When this unit attacks a vanguard, if it is the first battle of that turn, you may pay the cost. If you do, this unit gets [Power] +2000 until end of that battle, at the end of that battle, choose one of your other rear-guards in the same column as this unit, and and exchange positions with this unit. (The state of the card does not change)