Lucina was originally conceived as Marth's alt costume, Robin's

Since we posted our translations of Robin's move list -- including details on which moves can only be used for a finite number of times -- in Super Smash Bros for Wii U and 3DS from this week's issue of

Robcina, Shipping Wiki

Chrom - Wikipedia

Loustica Lucia - M!Robin x Lucina (with little F!Morgan) + SPEEDPAINTING VIDEO

Lucina Super Smash Bros. Ultimate

Marth Fire Emblem+BreezeWiki

A Broken Future - A Lucina Skin [Super Smash Bros. (Wii U)] [Mods]

Lucina in FE3H : r/fireemblem

Lucina was originally conceived as Marth's alt costume, Robin's limited-use moves regenerate over time in Super Smash Bros. for Wii U and 3DS

Robinxlucina Stories - Wattpad

Fire Emblem Ideas and Discussion, Page 406

Corrin (SSB4) - SmashWiki, the Super Smash Bros. wiki