Rebellious Retainer of Fresh Blood, Frederick

-Stride Step-[Choose one or more cards with the sum of their grades being 3 or greater from your hand, and discard them] this card on your from face down. :[Choose a card from your hand, and put it into your soul] This unit gets +1000 for each card in your soul until end of turn. If the total increased with this effect during this turn is 10000 or greater, all of the rear-guards in your front row get +5000 until end of turn, and this ability cannot be used for the rest of that turn.