Henry (Fire Emblem) vs Delta Warriors: who would win?

Henry (Fire Emblem) favored — Slight edge (~55%)

Henry (Fire Emblem) · Fire Emblem · Base

Tier

7-B, up to 4-A

Attack Potency

City Level, up to Multi-Solar System Level

Speed

Superhuman, up to Massively Hypersonic

Durability

City Level

Delta Warriors · Undertale · Light World

Tier

7-B

Attack Potency

City Level

Speed

Transonic, up to Supersonic

Durability

Wall Level

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