Mysterious being that appears in [[Fire Emblem Warriors: Three Hopes]], said to have forgotten most of their memories.

They don't have a physical body, being instead seen inside [[Shez_(fire_emblem)|]]'s mind. Their gender is also ambiguous.

[spoilers]Arval is the creation of an Agarthan named Epimenides and was designed to be an artificial counterpart to [[sothis_(fire_emblem)|Sothis]] ultimately intended to destroy her.[/spoilers]
arval (fire emblem)