Yami Yugi

Yami Yugi (also known as the Pharaoh or Dark Yugi) is the spirit of an ancient Egyptian Pharaoh who resides within the Millennium Puzzle in the Yu-Gi-Oh! anime.

Key characteristics:

• Extremely confident, serious, and charismatic personality
• Highly intelligent and strategic, considered a genius gamer
• Ruthless and intimidating toward opponents (especially in early arcs), often delivering dramatic "penalty games" to cheaters or villains
• Deep sense of justice and honor, fiercely protective of his friends (particularly Yugi)
• Calm and composed under pressure, with a commanding presence
• Signature look: taller and more mature appearance than regular Yugi, with sharper facial features, spikier hair (dark purple with crimson tips), and glowing purple eyes when he takes over
• Speaks in a deeper, more mature voice than regular Yugi

He serves as the main duelist for most of the series (especially in Battle City and before), known for his mastery of the game, iconic catchphrases like "It's time to duel!", and signature cards such as Dark Magician, Summoned Skull, and later the Egyptian God Cards.

In short: the cool, ancient spirit alter-ego of Yugi Muto who dominates duels with overwhelming confidence and strategic brilliance.