A question just bumped into my head, since Trollsare coded as Heavy Cavalry, do wooden stakes affect them in any way? I know Ents just plow right through them, but IIRC, they are labeled as elephants.
I would just do a quick custom battle to see, but I think this is a good question to have on the board in case anyone else wants to know.
edit: nevermind, I'm an idiot