Knight of Heavenly Pitch, Percel

[AUTO]Back Row Center (RC):At the end of the battle this unit boosted, if your opponent's vanguard is grade 3 or greater, [COST][Counter-Blast 1 & put this unit into soul], choose the same number of your [Rest] rear-guards as the number of rear-guards placed during the battle phase this turn by the ability of your vanguard with "Alden" in its card name, and [Stand] them. If you [Stand] two units, you may draw a card.