Yu Mei-ren vs Jay: who would win?

Yu Mei-ren favored — Slight edge (~55%)

Yu Mei-ren · Nasuverse · Alive

Tier

LOW 1-C, up to 1-C

Attack Potency

Low Complex Multiverse Level, up to Complex Multiverse Level

Speed

Massively Ftl+, up to Immeasurable

Durability

Low Complex Multiverse Level, up to Complex Multiverse Level

Jay · Ninjago · Dragon Form

Tier

LOW 1-C

Attack Potency

Low Complex Multiverse Level

Speed

Ftl

Durability

Low Complex Multiverse Level

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