Aeolus vs Tiamat (Dungeons and Dragons): who would win?

Tiamat (Dungeons and Dragons) favored — Slight edge (~55%)

Aeolus · Mega Man · Base

Tier
2-C
Attack Potency
Low Multiverse Level
Speed
Massively Ftl+
Durability
Low Multiverse Level

Tiamat (Dungeons and Dragons) · Dungeons & Dragons · True Form

Tier
2-C
Attack Potency
Low Multiverse Level
Speed
Infinite
Durability
Low Multiverse Level

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