Inferno tactics.

In fact, Octavia herself is quite good! A warrior hero with 2-2-1-1 stats, plus an attack skill, is not a bad setup!
P.S.: And there's also a high chance of getting Logistics!

I agree. Octavia is a good hero in her own right. She often gives Logistics and Air magic, Offense is quickly leveled up, and the Sorcerer allows you to quickly collect all the spells.