Yato

The Yatogami (夜刀神) is a sword wielded by the Avatar in Fire Emblem if.

Etymology
Yatogami translates to Night Sword of God.

Trivia

 * The Yatogami's hilt is modeled after a vajra, (meaning both thunderbolt and diamond) a ritual implement in Buddhist and Hindu beliefs meant to symbolize firmness of spirit and spiritual power.