"Gladiator Beast Laquari" + 2 "Gladiator Beast" monsters
Must first be Special Summoned (from your Extra Deck) by shuffling the above cards you control into the Deck. When a Spell/Trap Card is activated (Quick Effect): You can discard 1 card; negate the activation, and if you do, destroy it. This card must be face-up on the field to activate and to resolve this effect.