Nanomachine Ninja, Tsukikage "SD"

:When this unit is placed on , [pay a], choose up to one "Nanomachine Ninja, Byakuya "SD"" from your drop, and call it to . :Choose one of your Ninja rear-guards, if that unit's Buddy Soul does not have a card with the same card name as this unit, put this unit into that card's Buddy Soul. :If your opponent's vanguard is grade 3 or greater, your unit with this card in its Buddy Soul gets +5000/ +5000. (Active on opponent's turn too)