Fire Emblem is a tactical RPG which takes place in multiple medieval fantasy settings. Most of the games feature different characters and locations but all still exist in the same multiverse.
Overall Fire Emblem is a decently powerful verse; fodder characters in most Fire Emblem games have been known to withstand the bolganone tome, which packs Multi-City Block levels of destruction. Except for the GBA characters fodder who should still be Building level due to standing up to Bolting, which is treated as a real lightning bolt.
There are many large dragons in the games which have been shown destroying large castle towers and the strongest end game bosses are commonly seen as threats to casually destroy entire countries. Fire Emblem 6 and 7 have the end game bosses reaching Continent level scaling from the divine weapons. And Ashunera, the most powerful character in any of the main Fire Emblem entries, reaches Multi-Continent level via flooding the entire world except for one continent; this scales to Ashera and Yune due to the two of them being half the power of Ashunera.
A typical Fire Emblem character should have massively hypersonic combat speed and reactions as many of them can dodge arrows, cloud to ground lightning attacks, and meteors on a regular basis. Also the sword master attack animations in some games show them moving faster than the eye can see and casting several after images.
Fire Emblem: Shadow Dragon/New Mystery of the Emblem
Fire Emblem Echoes: Shadows of Valentia
Fire Emblem: Geneaology of the Holy War
Fire Emblem: Thracia 776
Fire Emblem: Binding Blade
Fire Emblem: Blazing Sword
Fire Emblem: Sacred Stones
Fire Emblem: Path of Radiance
Fire Emblem: Radiant Dawn
Fire Emblem Awakening:
Fire Emblem: Fates
Tokyo Mirage Sessions #FE:
Fire Emblem Heroes