Dark Link vs White Slaad: who would win?

Too close to call

Dark Link · The Legend of Zelda · Base

Tier

6-C, up to HIGH 6-A

Attack Potency

Island Level+, up to Multi-Continent Level

Speed

Massively Hypersonic+, up to Relativistic

Durability

Island Level+, up to Multi-Continent Level

White Slaad · Dungeons & Dragons · Base

Tier

6-C

Attack Potency

Island Level+

Speed

Relativistic+, up to Ftl

Durability

Island Level+

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