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 - $40.25
Lightly Played Unlimited - $38.25
Moderately Played Unlimited - $32.20
Heavily Played Unlimited - $20.15
Damaged Unlimited - $16.10