Dimensional Robo, Daibattles

(Soul):If your vanguard is "Dimensional Robo, Daidragon", your opponent's vanguard is grade 2 or greater, and your soul has "Dimensional Robo, Goyusha" and "Dimensional Robo, Dailander" and "Dimensional Robo, Daimariner", [put a card from hand into soul], choose up to one "Super Dimensional Robo, Daiyusha" from your ride deck, and ride it as . :When this unit is placed on from soul by your card's ability, if you have a grade 3 or greater vanguard with "Daiyusha" in its card name, and your opponent's vanguard is grade 3 or greater, your vanguard's original becomes 2 until end of turn.