Mazdamundi vs Schierke: who would win?

Schierke favored — Slight edge (~55%)

Mazdamundi · Warhammer Fantasy · Base

Tier
8-A, up to LOW 2-C
Attack Potency
Below Average Human Level, up to Universe Level
Speed
Immobile
Durability
Multi-City Block Level, up to Large Star Level

Schierke · Berserk · Base

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

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