When a monster would be Summoned, OR a Spell/Trap Card is activated: Pay half your Life Points; negate the Summon or activation, and if you do, destroy that card.
Near Mint Unlimited - $104.30
Lightly Played Unlimited - $93.80
Moderately Played Unlimited - $83.20
Heavily Played Unlimited - $70.60
Damaged Unlimited - $42.20