Yusei Fudo (Manga) vs Ouranos (Riordan): who would win?

Yusei Fudo (Manga) favored — Slight edge (~55%)

Yusei Fudo (Manga) · Yu-Gi-Oh! · Base

Tier

5-A

Attack Potency

Large Planet Level

Speed

Subsonic

Durability

Large Planet Level

Ouranos (Riordan) · Percy Jackson · True Form

Tier

5-B, up to HIGH 4-C

Attack Potency

Planet Level, up to Large Star Level

Speed

Nigh-Omnipresent

Durability

Planet Level, up to Large Star Level

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.