It looks like Fallen/Rearmed Chrom is specifically an undead version of Brave Chrom : r/FireEmblemHeroes
Next time they add a Lucina alt, I'll +10 her. -Man who is now facing bankruptcy. A +10(+5) V! Lucina showcase (with a +9(+5) V! Chrom as a side.) : r/FireEmblemHeroes
Drew a Legendary Lucina : r/FireEmblemHeroes
Also sharing a Lucina with her Resplendent alt's color palette I made some time ago for her Birthday! : r/FireEmblemHeroes
Lucina: Fate's Resolve - Fire Emblem Heroes Wiki
Brave Lucina is the next resplendant + her full art : r/FireEmblemHeroes
Summer Lucina and the Valentine Route : r/FireEmblemHeroes
Lucina, admiring the flowers (OC) : r/FireEmblemHeroes
Fanart I made of Lucina : r/FireEmblemHeroes
Lucina Prepares For Easter : r/FireEmblemHeroes
Lucina: Sea-salt Desserts : r/FireEmblemHeroes
The reason F!Robin doesn't have a Spring alt : r/FireEmblemHeroes