Fullspeed Specter

:Charge (During the turn this unit is placed on due to an effect, you may have it become charging. If you do, put it on the bottom of your deck at the end of its battle) : 1 When this unit becomes charging, you may pay the cost. If you do, until end of turn, this unit gets +4000, and ":This unit can attack a vanguard from the back row.".