Bandana Waddle Dee vs The Luminary: who would win?

Bandana Waddle Dee favored — Slight edge (~55%)

Bandana Waddle Dee · Kirby · Pre-Star Allies

Tier

2-C

Attack Potency

Low Multiverse Level

Speed

Relativistic+, up to Massively Ftl+

Durability

Low Multiverse Level

The Luminary · Dragon Quest · Act 3 and Post-Game

Tier

2-C

Attack Potency

Low Multiverse Level

Speed

Massively Hypersonic, up to Massively Ftl+

Durability

Low Multiverse Level

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