Enigman Calm

: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 one of your units that is being attacked, and it cannot be hit until end of that battle. Burst-(Drop zone):[ 1 & 1] At the end of the battle that your vanguard with the burst ability attacked, if that unit's is 40000 or greater, you may pay the cost. If you do, return this card to your hand, and if your vanguard's is 45000 or greater, 1.