Dioscuri vs Anna (Fire Emblem Heroes): who would win?

Dioscuri favored — Slight edge (~55%)

Dioscuri · Nasuverse · True Selves

Tier

1-C

Attack Potency

Complex Multiverse Level

Speed

Relativistic+, up to Immeasurable

Durability

Complex Multiverse Level

Anna (Fire Emblem Heroes) · Fire Emblem · Book I

Tier

1-C

Attack Potency

Complex Multiverse Level

Speed

Superhuman, up to Massively Hypersonic+

Durability

Complex Multiverse Level

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