Peddal appears as a small dog-like creature but is actually a Create Monster with the power to generate monster cards. After being rescued from unidentified pursuers by the protagonist, he forms a partnership with them. This alliance leads Peddal to grant the protagonist a unique Live Change card named Tategami Wolf, enabling transformation into a pyrokinetic monster wolf form that allows communication with summoned monsters.

Peddal creates diverse monster cards for Live On card battles. While humans perceive his vocalizations as ordinary animal sounds, monsters recognize him as highly articulate and intelligent. He frequently integrates complex English phrases into his speech. His monster cards often feature bilingual puns merging Japanese and English wordplay, with names drawing inspiration from pop culture.

During battles, Peddal actively contributes by generating new cards and providing tactical guidance. His card-creating abilities and presence continually draw pursuit from antagonists aiming to exploit his powers.