Bruno (Fire Emblem) vs Dioscuri: who would win?

Dioscuri favored — Slight edge (~55%)

Bruno (Fire Emblem) · Fire Emblem · Book I

Tier

1-C

Attack Potency

Complex Multiverse Level

Speed

Superhuman, up to Massively Hypersonic+

Durability

Complex Multiverse Level

Dioscuri · Nasuverse · True Selves

Tier

1-C

Attack Potency

Complex Multiverse Level

Speed

Relativistic+, up to Immeasurable

Durability

Complex Multiverse Level

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