Jayna vs Kiyama Harumi: who would win?

Jayna favored — Slight edge (~55%)

Jayna · DC · Base

Tier

9-C, up to 5-A

Attack Potency

Street Level, up to Large Planet Level

Speed

Massively Ftl+

Durability

Below Average Human Level, up to Large Planet Level

Kiyama Harumi · Toaru Majutsu no Index · Base

Tier

9-C, up to 8-B

Attack Potency

Street Level, up to City Block Level

Speed

Average Human

Durability

Human Level, up to Town Level

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