Sadie

Sadie is a lady who works in Ms. Dorothy's card shop. Her personality is generally cheerful and unassuming. She claims to have little knowledge of how to duel

In Yu-Gi-Oh! GX Tag Force the player must beat the game with at least five 5 different Tier 1 characters, before they can duel Sadie.

Deck
In Yu-Gi-Oh! GX Tag Force 2, Saide runs an aggressive Burn Deck. She is considered one of the tougher opponents to face.