Here is Cairne Bloodhoof path in the dungeon mission 26. He will join later when Thrall reach a locked door. Cairne Bloodhoof is a nice and wise melee hero from the Tauren race, who may shake the ground ans stun enemies around. On his way in the dungeon, there is a Hungry Hungry Lizard. Do not rush to kill it. The lizard will eat the mushrooms and clear a way to a nice item.