Meridia vs Kamen Rider Gatack: who would win?

Kamen Rider Gatack favored — Slight edge (~55%)

Meridia · The Elder Scrolls · Magne-Ge Merid-Nunda

Tier

LOW 1-A

Attack Potency

Low Outerverse Level

Speed

Immeasurable

Durability

Low Outerverse Level

Kamen Rider Gatack · Kamen Rider · Post-Oma Day

Tier

1-A

Attack Potency

Outerverse Level

Speed

Immeasurable

Durability

Wall Level, up to Outerverse Level

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