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 - $79.30
Lightly Played Unlimited - $75.30
Moderately Played Unlimited - $67.40
Heavily Played Unlimited - $59.50
Damaged Unlimited - $55.50