"VW-Tiger Catapult" + "XYZ-Dragon Cannon" Must first be Special Summoned (from your Extra Deck) by banishing the above cards you control. (You do not use "Polymerization".) Once per turn: You can target 1 card your opponent controls; banish that target. When this card declares an attack on an opponent's monster: You can target the attack target; change that attack target's battle position. (Flip Effects are not activated.)