N-Daguva-Zeba vs Keyes: who would win?

Keyes favored — Slight edge (~55%)

N-Daguva-Zeba · Kamen Rider · Perfect Form

Tier

6-C, up to 5-B

Attack Potency

Island Level+, up to Planet Level

Speed

Subsonic, up to Massively Hypersonic+

Durability

Island Level+, up to Planet Level

Keyes · Fairy Tail · Base

Tier

6-C

Attack Potency

Island Level+

Speed

Sub-Relativistic+

Durability

Unknown

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