Ezreal vs Gowther (Demon): who would win?

Gowther (Demon) favored — Favored (~65%)

Ezreal · League of Legends · Arcade

Tier: 4-B
Attack Potency: Solar System Level
Speed: Average Human, up to Massively Hypersonic+
Durability: Unknown

Gowther (Demon) · Nanatsu no Taizai · Base

Tier: 4-B
Attack Potency: Solar System Level
Speed: Relativistic
Durability: Unknown

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