The Original Starwalker vs Daiba: who would win?

Daiba favored — Slight edge (~55%)

The Original Starwalker · Undertale · Base

Tier
8-A
Attack Potency
Multi-City Block Level
Speed
Average Human, up to Ftl
Durability
Multi-City Block Level

Daiba · Berserk · Base

Tier
8-A
Attack Potency
Multi-City Block Level
Speed
Subsonic+, up to Massively Hypersonic
Durability
Multi-City Block Level

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