:If your soul has ten or less cards, [COST][Soul-Blast]1], choose a card from your soul, and bind it face down. :Gain all of the following according to the number of face down cards in your bind zone.
:When this unit attacks, if your bind zone has fifteen or more face down cards, choose one of your opponent's vanguards, and deal two damage.
And that's 15. O Blade Wing, bring forth the end to everything!