[GLAS-EN000] Gladiator Beast Octavius

When this card is Special Summoned by the effect of a "Gladiator Beast" monster: Target 1 face-down Spell or Trap Card in the Spell & Trap Card Zone; destroy that target. At the end of your Battle Phase, if this card attacked or was attacked: Shuffle this card into the Deck or discard 1 card.