Pay half of your Life Points when your opponent either activates a Spell or Trap or summons a monster (including Special Summon) to negate the action and destroy all the cards involved.
Near Mint Unlimited - $13.90
Lightly Played Unlimited - $13.20
Moderately Played Unlimited - $11.90
Heavily Played Unlimited - $10.50
Damaged Unlimited - $9.80