Epic RPG Final Battles

[Tizona]

Mr Khan said:

See i felt Mithos himself in Symphonia one was rather anticlimactic. I struggled more with the final fight against Kratos and several other bosses more than Mithos (though i suppose i went out of my way to get all the Devils Arms, so i had more power than you were supposed to)

Ashera in Fire Emblem 10 (if SRPGs count) was a perfect capper

I thought about Mithos too, he suffers from much of the same problems as Richter. But Richter you had seen in action the entire game, and he didn't bring anything really new to his final battle. I remember the optional boss Abyssion being the guy I had the most difficulty with in the first one.

Which Fire Emblem is 10? There are so damn many of them!