I can't play online so I'm just talking about offline the uruk hero i made turned out surprisingly strong. His big skill is the highest fire bomb skill it wipes out so many ppl and he has great reinforcements for lvl 9 that summons orcs and an attack troll and he has a big damage boost skill as well to make him really tough. i think there's one more key skill but i don't remember what it is atm.
I am a loser. But, aye, thou art more of a loser than I. Eye that for a time and ponder it touroughly.