I've been leveling up my Eli, and to be honest, if you have Althea and one other ranged maiden in their 60s (I use Coral) that's all you need unless you're trying to farm XP on Campaign 2 (which may be smarter, but I'm lazy). And honestly, having Helen in there to trip aggro too early would be detrimental. 90% of the time I don't even place Eli on the map, but just let her whore the XP off of Althea's/Coral's work.