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 - $19.80
Lightly Played Unlimited - $17.80
Moderately Played Unlimited - $15.90
Heavily Played Unlimited - $9.90
Damaged Unlimited - $7.90