Advanced format ruling
Mega Ton Magical Cannon
Card effect (current official text)Remove 10 Spell Counters on your side of the field. Destroy all cards on your opponent's side of the field.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.