Black Beetle vs Rebellion (Undead Unluck): who would win?

Too close to call

Black Beetle · DC · Base

Tier

HIGH 7-A

Attack Potency

Large Mountain Level

Speed

Supersonic+, up to Relativistic+

Durability

Large Mountain Level

Rebellion (Undead Unluck) · Undead Unluck · Base

Tier

HIGH 7-A

Attack Potency

Large Mountain Level

Speed

Hypersonic+

Durability

Large Mountain Level

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