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 - $54.70
Lightly Played Unlimited - $49.20
Moderately Played Unlimited - $43.70
Heavily Played Unlimited - $27.40
Damaged Unlimited - $21.90