I like! I haven't looked at your Fire Emblem stuff before but I will definitely have to go and do so over the next few days if this is an example of it. It gives you a lot of the power and versatility of ToB without becoming another "Spellcaster" I like the X-Mod cooldown times.
Though as a nit-pick, Myrmidons being a Bronze Age Greek thing they should get proficiency with spears too, that's just me though.