Young Link (Hyrule Warriors) vs Mothra (Showa): who would win?

Young Link (Hyrule Warriors) favored — Slight edge (~55%)

Young Link (Hyrule Warriors) · The Legend of Zelda · Fierce Deity Link

Tier

4-C

Attack Potency

Star Level

Speed

Massively Hypersonic+, up to Relativistic+

Durability

Star Level

Mothra (Showa) · Godzilla · Imago

Tier

4-C

Attack Potency

Star Level

Speed

Subsonic+, up to Massively Ftl

Durability

Star Level

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