:When your grade 3 or greater vanguard with "Krysrain" in its card name attacks, COST [Energy Blast (3) & put this unit into soul], draw a card, if your rear-guard did not
by a card's ability this turn, choose a rear-guard chosen by the ability of your grade 3 or greater vanguard with "Krysrain" in its card name this turn, and
it.