Equip only to a "Mermail" monster. It gains 800 ATK. When a Trap 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 / Lightly Played Unlimited - $0.50
Moderately Played Unlimited - $0.50
Heavily Played Unlimited - $0.50
Damaged Unlimited - $0.50
Near Mint / Lightly Played 1st Edition - $1.00
Moderately Played 1st Edition - $0.50
Heavily Played 1st Edition - $0.50
Damaged 1st Edition - $0.50