Athena is in a quest mod for Skyrim known as "Greek Nightmares". Athena is one the followers and Gods you will encounter in this mod. She dosen't fight unless other mods interfere. I preperation for this i've givven her a dwarven dagger that deals infinite damage.
Athena is the goddess of wisdom, war strategy, and craft. She is very helpful in the quest mod.
You may give her armor but none shall actually appear with the dwarven exoskeleton exempt.