Remove Spell Counters from your field to activate 1 of these effects;
* 2: Return 1 "Mythical Beast" Pendulum Monster you control to the hand.
* 4: Special Summon 1 face-up "Mythical Beast" Pendulum Monster from your Extra Deck, then you can place 2 Spell Counters on it.
* 6 : Special Summon 1 face-up Pendulum Monster from your Extra Deck.
You can only activate 1 "Beast Magic Attack" per turn.