Infernal Bombardment

Play this with [COST][discard a card from hand]! Choose one of your vanguards, and it gets "[AUTO](VC):When your opponent's rear-guard is retired by your card's ability, if it is your opponent's first rear-guard retired by your card's ability this turn, draw a card, and [Soul-Charge 1]. If it is their second rear-guard this turn, draw a card, [Soul-Charge 1], and this unit gets [Power] +10000 until end of turn." until end of turn.