Supreme overlord. Full anime-villain register.

What a Japanese person actually thinks
Straight chūnibyō. Reads as a final-boss title. Nobody will be intimidated; a few people will ask which game it's from.

Meaning

Literally: supremacy + king
Actually: A conqueror who rules by force rather than virtue — a real classical Chinese political term, now mostly seen in manga and games.

Scores

Naturalness●●●●●

Real word with a genuine classical pedigree, now heavily colonised by fiction.

Coolness●●●●●

Visually strong — 覇 is a great character. The claim is the problem.

Watch out

mediumIn classical usage 覇王 is explicitly the *bad* kind of ruler — the one who rules by force, contrasted with 王道, ruling by virtue.

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王道 ōdō
the royal road; ruling by virtue rather than force

The opposite and better half of the same classical pair. Also means 'the orthodox, proper way' in modern usage.

On skin

覇王

Orientation: vertical

Bold brush.