Yu-Gi-Oh! GX SPIRIT CALLER has a limited selection of cards, so building any archetype outside of the main cast for Season 1 is...hard. I built a functional Toon themed deck for fun.
Try and play Vengeful Bog Spirit as soon as possible, it'll put the same limit on your opponent as your Toon monsters on you. You have SIX deck searchers + 3 Toon Worlds, so 25% of your deck is getting Toon World on the field; OG toon monsters are easier to special summon from higher levels, and opponents don't have a defence against direct attacks. Stall out your opponent + buff your life points with Spell Absorption (computer A.I. will avoid attacking Fiend's Sanctuary unless they become cornered, or will OTK you).
Side deck: If you unlocked Monster Reborn (from Atticus), replace Premature Burial. If you don't care for building your Life Points up, swap out some Spell cards for Ceasefire, and keep Jar of Greed if you want to draw more of your deck.
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