Serial Bomber

: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) /:When your other rear-guard becomes charging, this unit gets +4000 until end of turn. :When this unit is placed on , choose up to one card from your hand, call it to an open , and that unit gets +2000 until end of turn.