Equip only to a "Mermail" monster. It gains 800 ATK. When a Spell effect that was activated on your opponent's side of the field resolves, negate that effect, then send this card to the Graveyard.
Near Mint Unlimited - $1.50
Near Mint 1st Edition - $0.70
Lightly Played Unlimited - $1.20
Lightly Played 1st Edition - $0.60
Moderately Played Unlimited - $1.00
Moderately Played 1st Edition - $0.50
Heavily Played Unlimited - $0.70
Heavily Played 1st Edition - $0.40