Jackknife "Gold Ritter"

Dragon World Arms - Grade 3 or greater card with "Tasuku" in its card name (If a new Item is armed, put this card into drop) :This card cannot be played. (Hand):If you have a grade 3 or greater vanguard with "Tasuku" in its card name, and your opponent's vanguard is grade 3 or greater, [retire a rear-guard with "Jackknife" in its card name and two or more cards in its Buddy Soul], and arm this card to your vanguard. :Your vanguard cannot be chosen by your opponent's card effects, its original becomes 20000, and it gets "Triple Drive". (Active on opponent's turn too) :At the end of the battle the unit armed with this card attacked, if it is the first battle that unit attacked this turn, that unit, and its drive becomes 0 until end of turn.