Shen (Undead Unluck) vs Brainiac (DCAU): who would win?

Too close to call

Shen (Undead Unluck) · Undead Unluck · Base

Tier

7-A, up to HIGH 7-A

Attack Potency

Mountain Level, up to Large Mountain Level

Speed

Hypersonic+, up to Massively Hypersonic

Durability

Mountain Level, up to Large Mountain Level

Brainiac (DCAU) · DC · Base

Tier

7-A, up to 5-B

Attack Potency

Mountain Level, up to Planet Level

Speed

Hypersonic+, up to Relativistic

Durability

Mountain Level

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