We shall fight... the seven heads of garroshaarj.
Actually, there's an interesting idea. The garrosh encounter has seven phases, where he adopts a different 'face' each time, one for each of the sha. Garrosh has had enough personality flips to make that possible.
Phase 1 - fear: child garrosh, sick, weak and abandoned
Phase 2 - despair: The garrosh from TBC, crushed beneath the weight of his father's legacy
Phase 3 - violence: The garrosh from the comics and the beginning of WotLK, seeking to solve each of his problems through mindless aggression
Phase 4 - anger: The garrosh from the end of WotLK, angry at thrall for not doing anything about the alliance threat, angry at sylvanas for allowing traitors to roam free, angry at Varian for insulting his people when they were only victims, angry at Saurfang for doubting him
Phase 5 - doubt: garrosh after just being appointed warchief, unsure of his abilities
Phase 6 - hatred: Garrosh from Cata, hateful of everything he doesn't see as the true horde
Phase 7 - pride: Garrosh from MoP, arrogant to the point where it may destroy the people he was tasked to protect