Mr. Mxyzptlk (My Adventures with Superman) vs Anno Un: who would win?

Too close to call

Mr. Mxyzptlk (My Adventures with Superman) · DC · With Bowler Hat

Tier
7-A
Attack Potency
Mountain Level
Speed
High Hypersonic
Durability
Unknown

Anno Un · Undead Unluck · Base

Tier
7-A
Attack Potency
Mountain Level
Speed
Hypersonic+
Durability
Unknown

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