Zappa vs Ultima (Web Novel): who would win?

Zappa favored — Slight edge (~55%)

Zappa · Guilty Gear · Pre-Xrd

Tier

6-A

Attack Potency

Continent Level

Speed

Relativistic+

Durability

Continent Level

Ultima (Web Novel) · Tensei Shitara Slime Datta Ken · Pre-Awakened Demon Lord

Tier

6-A

Attack Potency

Continent Level

Speed

Massively Hypersonic

Durability

Continent Level

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