When your opponent Normal or Special Summons a monster(s): Target 1 of those monsters and 1 Spellcaster-Type monster you control; send both monsters to the Graveyard, then you can Special Summon 1 DARK Spellcaster-Type monster from your Deck or Graveyard.
Near Mint Unlimited - $19.90
Lightly Played Unlimited - $18.90
Moderately Played Unlimited - $16.90
Heavily Played Unlimited - $14.90
Damaged Unlimited - $13.90