During either player's turn, when your opponent activates a Spell/Trap Card or monster effect that could make them discard when it resolves: You can send this card from your hand to the Graveyard; negate the activation, and if you do, destroy it.
Like New Unlimited - $0.70
Light Played Unlimited - $0.50
Heavy Played Unlimited - $0.30
Like New 1st Edition - $1.10
Light Played 1st Edition - $0.80
Heavy Played 1st Edition - $0.50