Gorrl the Living Galaxy vs Victini: who would win?

Gorrl the Living Galaxy favored — Slight edge (~55%)

Gorrl the Living Galaxy · Supreme (Image Comics) · Base

Tier

3-C

Attack Potency

Galaxy Level

Speed

Massively Ftl+

Durability

Galaxy Level

Victini · Pokémon · Base

Tier

3-C, up to HIGH 3-A

Attack Potency

Galaxy Level, up to High Universe Level

Speed

Ftl, up to Infinite

Durability

Galaxy Level, up to High Universe Level

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