Zeldris vs Egg Walker: who would win?

Egg Walker favored — Slight edge (~55%)

Zeldris · Nanatsu no Taizai · Base/Demon Mark

Tier

4-B

Attack Potency

Solar System Level

Speed

Sub-Relativistic+, up to Ftl+

Durability

Solar System Level

Egg Walker · Sonic · Base

Tier

4-B

Attack Potency

Solar System Level

Speed

Massively Ftl

Durability

Solar System Level

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