Commander Shadowsun vs Yumiya Iruka: who would win?

Commander Shadowsun favored — Slight edge (~55%)

Commander Shadowsun · Warhammer 40,000 · Base

Tier

9-C, up to 8-B

Attack Potency

Street Level, up to City Block Level

Speed

Hypersonic

Durability

Street Level, up to Building Level+

Yumiya Iruka · Toaru Majutsu no Index · Base

Tier

9-C, up to 9-B

Attack Potency

Street Level, up to Wall Level

Speed

Athletic Human, up to Speed Of Light

Durability

Street Level

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