You cannot Special Summon from the Extra Deck, except Beast, Beast-Warrior, or Winged Beast monsters. You can send 1 monster from your hand or field to the GY; add 1 "Tri-Brigade" monster from your Deck to your hand with a different original Type than that monster sent to the GY. You can only use this effect of "Tri-Brigade Stand-Off" once per turn. If this card in its owner's Spell & Trap Zone is destroyed by an opponent's card effect: You can activate this effect; your opponent cannot declare an attack this turn.