Breath Melting to White, Reirin

:When this unit is placed on , choose up to one of your opponent's front row rear-guards, and return it to hand. If you did not choose a card, you may 1. :When your vanguard with "Siana" in its card name attacks, if your opponent's front row has no rear-guards, [put this unit into soul], draw a card, if you persona rode this turn, and your unit did not this battle phase, choose one of your rear-guards, and it.