Champions have been dominant units in past alphas, however these units are no longer seen in the game, neither in 1v1 or TG. For me it's a big waste of material, so I'm willing to put together a patch to make them viable again and I count on everyone's opinion/suggestion to be able to put together a patch as suitable as possible.
My three primary suggestions are:
1- Reduce costs;
2- Give champion units special abilities, like fire cav / immortals. That way you will have a bigger and more specific proposal to train these units.
3- Both.
So what do you think?