Edison format ruling
VWXYZ-Dragon Catapult Cannon
Card effect (current official text)"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.)
Rulings
- This card’s first effect is not optional. If the opponent has any cards on their side of the field, you must use this effect during your turn. This effect targets and can be chained to.
- If you select to remove a face-down Spell or Trap Card, and the opponent activates it in a chain, the card will still be removed from play after it resolves.
- This card’s second effect targets the monster you attack. It is a Trigger Effect that activates when you declare the attack, and it can be chained to.
- If you attack a face-down Defense Position monster and activate this card’s effect to change its Battle Position, the monster will be changed to face-up Attack Position. If it has a Flip Effect it will not be activated, as stated on the card.
- Once properly Summoned by the method written in the text this card can be Special Summoned from the GY with effects like "Call of the Haunted" or "Re-Fusion".
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.