Lumis and Umbra play Mask-themed God Seal Decks, that weaken and manipulate the opponent's cards while lowering their opponent's Life Points. Lumis plays a Deck with more Spell and Trap Cards while Umbra plays a Deck with more Monster Cards. They also rely on teamwork to support each other, while taking down the opponents. When provoked by Kaiba, coupled with several slip-ups, their teamwork faltered, leading them to defeat.
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