Wynn the Wind Charmer vs The Dunwich Horror: who would win?

Too close to call

Wynn the Wind Charmer · Yu-Gi-Oh! · Storming Wynn

Tier: HIGH 8-C
Attack Potency: Large Building Level
Speed: Supersonic
Durability: Wall Level, up to Small Building Level

The Dunwich Horror · Cthulhu Mythos · Base

Tier: HIGH 8-C
Attack Potency: Large Building Level
Speed: Superhuman
Durability: Unknown

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