The Pokémon TCG Scarlet & Violet Rival Battle Deck for Marnie is a ready-to-play 60-card deck led by Marnie's Grimmsnarl ex and its Darkness Energy acceleration. It is a straightforward pickup for newer players and fans of the Spikemuth Trainer.

• Series: Scarlet & Violet era
• Deck: 1 ready-to-play 60-card deck themed around Marnie
• Promo: a special promo card featuring Marnie with her partner Pokémon
• Accessories: damage counters, large metallic coin, deck box
• Also included: double-sided playmat and strategy sheet, plus an online code card