In Spirit Caller, Star Boy has the ability to allow the player to get better packs than usual when it is available. To improve this ability, the player has to level up the spirit by Summoning the corresponding card in a Duel and winning.
In Spirit Caller, Star Boy uses a Beatdown Deck tilted "Star Land!"
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Mist of the Mermaids+, Mist of the Warriors+, Waters of the Witch+, Waters of the Ice Dragon+, Waters of the Guardians+, Torrential Ice Barrier+, Torrential Dinosaurs+, Torrential Machines+, Torrential Blossoms+ and Torrential Talons+