Send the top 2 cards of your Deck to the GY, then target 1 card on the field that you can place a Spell Counter on; place 2 Spell Counters on it. If this card in its owner's possession is destroyed by an opponent's card effect: You can Special Summon 1 monster from your Deck that you can place a Spell Counter on, and if you do, place 2 Spell Counters on it. You can only activate 1 "Mythical Bestiary" per turn.