Advanced format ruling
Earthbound Wave
Card effect (current official text)When your opponent activates a Spell/Trap Card while you control a "Earthbound Immortal" monster: Negate the activation, and if you do, destroy it.
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.