Loma Shade vs Tiki (Fire Emblem): who would win?

Tiki (Fire Emblem) favored — Slight edge (~55%)

Loma Shade · DC · Base

Tier

HIGH 6-C, up to 4-B

Attack Potency

Large Island Level, up to Solar System Level

Speed

Superhuman, up to Ftl+

Durability

Wall Level, up to Solar System Level

Tiki (Fire Emblem) · Fire Emblem · Divine Dragon Form

Tier

HIGH 6-C, up to 4-A

Attack Potency

Large Island Level, up to Multi-Solar System Level

Speed

Superhuman, up to Massively Hypersonic

Durability

Large Island Level, up to Multi-Solar System Level

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