Either player can pay 800 Life Points to negate the Special Summon of a monster(s), and/or an effect that Special Summons a monster(s) and destroy those cards.
Near Mint Unlimited - $132.99
Lightly Played Unlimited - $112.99
Moderately Played Unlimited - $92.99
Heavily Played Unlimited - $79.99
Damaged Unlimited - $66.99