Shen (Undead Unluck) vs Tauros: who would win?

Tauros favored — Slight edge (~55%)

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

Tauros · Pokémon · Base

Tier

7-A

Attack Potency

Mountain Level

Speed

Massively Hypersonic+

Durability

Mountain Level

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