The Alchemist

I've seen this suggested before and only problem I can see with this is generally speaking you want to be charging with your Dragon Ogors and to successfully complete a charge you have to finish your move within 1/2" of an enemy model? It's difficult to do that with a screen of Gors/Ungors between you and the enemy model - but then again striking first isn't so much an issue if they can't reach you with their weapons, I guess? Then again, I don't necessarily think Dragon Ogors need a screen - they aren't a glass cannon.