played it a few times and this map has some bugs:
-sometimes the item recipes dont work for the rest of the game(maybe it happens due to leavers? i dont know =/)
-troll trapper is EXTREMELY imballanced. 60% evasion+curse spell of those caster units of the horde and hes impossible to hit with normal attacks. also his ensnare trap at max lvl can be used to perma snare a hero, making it impossible to do anything for the victim. i suggest to highly increase the CD of that trap or double the manacosts.
-imho i think curse is much stronger than inner fire. maybe change the spell on a side so they both share the same spell to make it more ballanced.
-the terrain is slightly imballanced for ranged heroes, since some alliance bases are on higher ground while some horde bases arent. make either both of them on the ground or on a hill/mountain/whatever, but not like it is now.
if ive forgot something, ill edit this post.
P.S. i know i listed lots of bugs etc. but let me tell you that your map has indeed potential and i would like to see more ballanced versions in the future
3/5 for now, 4/5 if the bugs are fixed and the map's ballanced.