Fire Emblem antagonists be like
>Evil king
>Evil wizard who was controlling the evil king
>Evil dragon
>That one semi-major wyvern rider you fight halfway through the game
>That one super honorable knight you kill who usually has a tragic history with one of your party members
Literally why though?
I guess Path of Radiance did something kinda different with a goddess final boss and a priest villain, but that's just another flavor of JRPG cliche.