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 - $15.90
Lightly Played Unlimited - $15.10
Moderately Played Unlimited - $12.70
Heavily Played Unlimited - $7.95
Damaged Unlimited - $6.35