Has anyone managed to make Harpies work? I see many issues with it:
* The 2x harpies are weak (and one needs to sacrifice early item to get an undead. Poop)
* The number of units with an enemy target spell are really not great (antimage/spider, possibly the best?)
* Combos I can think of (mage or demon) don't really scale up; in the case of wizards, if KoTL+dragons doesn't do the job, then this won't be of any help
* You *really* don't want to waste the tome of extra race on this, when there are so many better options for synergies... (dragons, dranei)

It feels like it should be stronger. Or at least flexible and useful. It's really neither, it only really allows you to get 6x mages early on. Please tell me otherwise, I want to love harpies :)