Fukuro vs Gray Demon: who would win?

Too close to call

Fukuro · Fairy Tail · Base

Tier

HIGH 7-A

Attack Potency

Large Mountain Level

Speed

Sub-Relativistic

Durability

Large Mountain Level

Gray Demon · Nanatsu no Taizai · Base

Tier

HIGH 7-A

Attack Potency

Large Mountain Level

Speed

Sub-Relativistic

Durability

Large Mountain Level

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