Skill set for Brave Ephraim in a non armor team?

Do you have Atk Smoke fodder? It might be useful since he is build to take hits

There's one build I absolutely have a blast with, and I'll recommend it to anyone trying to build him.

Give him Death Blow (3 for budget, 4 if you can/want to afford it) and Dragon Fang instead of Draconic Aura. Keep Special Fighter, and since this a mixed team, the C slot is flexible. He becomes a player phase monster with this set, especially if you have Atk Tactic on an ally. Garm and Special Fighter let him proc Dragon Fang every fight against a melee foe. 57 (Atk w/ Garm) + 6 (Death Blow 3) = 63 Attack, which translates to +31 damage per proc. Add another 6 with Atk Tactic and then it's +34 damage a proc. He can break through the weapon triangle with this set, and can even kill some foes with Triangle Adept against Ephraim, it's that strong.

Just make sure whoever Ephraim's going to fight doesn't have Guard.