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 - $113.40
Lightly Played Unlimited - $102.10
Moderately Played Unlimited - $79.40
Heavily Played Unlimited - $56.70
Damaged Unlimited - $45.40