Daimant was a decent hero in Fire Emblem: Engage.

A prince of a kingdom, he theoretically becomes king when his father is murdered but it’s never mentioned. But he stays with Alear the entire time until Sombron is defeated.

I mainly had him as a sword-wielding warrior and paired him with Ike most of the time.

He was one of my mid-range power warriors. He was usually safe enough to leave by himself but he did “die” every now and then.