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 - $19.90
Lightly Played Unlimited - $17.90
Moderately Played Unlimited - $15.90
Heavily Played Unlimited - $10.00
Damaged Unlimited - $8.00