Pendulum Effect: If you have no card in your other Pendulum Zone: You can target 1 card you control that you can place a Spell Counter on; destroy this card, and if you do, place 1 Spell Counter on that card. You can only use this effect of "Mythical Beast Jackal" once per turn.
Monster Effect: Each time a Spell Card is activated, place 1 Spell Counter on this card when that Spell resolves. You can remove 3 Spell Counters from your field and Tribute this card; Special Summon 1 "Mythical Beast" Effect Monster from your Deck, except "Mythical Beast Jackal".