Extreme Battler, Headstrong-battle

:Sentinel :[Choose a card from your hand, and discard it] When this unit is placed on from hand, you may pay the cost. If you do, choose up to one of your vanguards that is being attacked, and that unit cannot be hit until end of that battle. :When this unit is placed on , if there is a card named "Extreme Battler, Gachibatall" in your drop zone, choose up to one of your rear-guards, and until end of turn, it gets ": 1 At the beginning of the guard step of the battle that your vanguard was attacked, you may pay the cost. If you do, move this unit to your as , and this unit gets Shield+10000 until end of that battle.