Goat format ruling
Wave-Motion Cannon
Card effect (current official text)During your Main Phase: You can send this face-up card to the GY; inflict 1000 damage to your opponent for each of your Standby Phases that have passed since this card was activated.
Rulings
- Your opponent cannot chain Magic Jammer, or use Dark Paladin, etc., when you send Wave-Motion Cannon from the field to the GY. Your opponent CAN chain Magic Jammer or use Dark Paladin, etc., when you first activate Wave-Motion Cannon (meaning when you place it face-up on the field).
- If Imperial Order is applying on the field, count Standby Phases as normal for Wave-Motion Cannon.
- You can activate Wave-Motion Cannon (place it face-up on the field) and send it to the GY during the same turn, but it will not do any damage.
- If the SP is skipped with Solomon's Lawbook or the turn is skipped with Gamble, increase the count for Wave-Motion Cannon anyway.
- You cannot use Pyro Clock of Destiny with Wave-Motion Cannon. "Wave-Motion Cannon" counts the number of Standby Phases it was on the field when it is sent to the GY by its effect.
- If "Imperial Order" is applying when "Wave Motion Cannon" sends itself to the GY, the effect of "Wave-Motion Cannon" is negated and no damage is inflicted.
- Q: If a "Wave-Motion Cannon" is on my field and I activate "Imperial Order" does it still get its counter during my SP. A: "Wave-Motion Cannon" does not use Counters. If "Imperial Order" is on the field, "Wave-Motion Cannon" will still get its phase count, but it does not use physical counters like other spell cards do.
- Q: If I activate the effect of sending "Wave-Motion Cannon" to the GY to inflict damage to my opponent and my opponent activates "Imperial Order," what happens? A: It would resolve without effect, meaning that it would go the GY but it would do no damage because "Imperial Order" negated its effect.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.