Cosmic Blazar Dragon (Quarter Century Secret Rare) (MP24-EN029) [25th Anniversary Tin: Dueling Mirrors]

1 Tuner Synchro Monster + 2+ non-Tuner Synchro Monsters Must be Synchro Summoned. (Quick Effect): You can banish this card until the End Phase to activate 1 of these effects; • When your opponent activates a card or effect: Negate the activation, and if you do, destroy that card. • When your opponent would Summon a monster(s): Negate the Summon, and if you do, destroy that monster(s). • When an opponent's monster declares an attack: Negate the attack, then end the Battle Phase.