Mystletainn

One of the best holy weapons from fire emblem: Genealogy of the holy war. Can be used only by people with major Hezul holy blood, with the only in-game characters being Eldigan and Ares. It gives +10 resistance and a whopping +20 skill, and has 30 might, along with the skill Critical. Apparently some Chunnibyou named Owain or something tried to find it later in time.