Nice idea...a little sloppy though
Its a nice idea but a little generous on the stat gains and you need it to cost more if you will give it such huge stat gains. Also, can you clean up the presentation? I had a little difficulty reading the stats increase per level at first. Also, decrease to speed to around 12. Something as big as a giant cant move at the speed of a goblin. I would like to suggest that the Orc can throw projectiles to enable him to hit flying clan castle units as well. These are just suggestions/opinions and of course no opinion is ever right or wrong.