Yes, there is always an option of selling but isn't that very disappointing? After all that fighting and everything. And to be honest Cora is an outstanding offensive hero. Why would anyone want to keep her as a part of defensive force? That would be a waste. You can erect bunch of towers, get fews pickmen crossbow men , one cleric, one hydro and a catapult -------that is enough to defend the choke points.
I do strongly suggest
@Shar Dundred to replace that doom hoom and lion horn with something else.
@LickMyEyeBall , yes skillset are great for a melee fighter but he is not a "hero killer". But his war aura compensate everything. That being said, if you look at Cora, she is deadlier, especially against masses.