Kidnap! is disabled most of the battle so that the boss does not waste mana, and is enabled if the player has a minion on the board besides Misha.
The minions that put into a Stuffed Sack lose their enchantments.
Unlike Gnomenapper Khiragg does not use Silence on Stuffed Sacks if there is other target.
Khiragg's board can not be completely filled with Stuffed Sacks. 
For a free win, do not bother to kill any Stuffed Sack. Instead, summon some weak minions and let Khiragg fill his own board with the Sacks to board lock him. He will be forced to Sack even a 1/1 as long as there is a minion on your field which is not Misha.
Thanks to Jaina, I escaped. But war was upon us and worse, we were outnumbered.
Warchief Thrall knew we needed allies. He sent me to rescue a young tauren from the centaur, hoping it could win his people to our side.
You kidnapped Baine Bloodhoof and devastated his father. Release him, now!
The tauren is ours, fool.
Do you think we are stupid?
Follow the khan.
Fight for us now!
This one will be dearly missed.
The tauren do not belong here. Neither do you.
We have never kidnapped a half-orc, half-ogre before...
You are no ally to the tauren. Why save him?
My father knows I am here?! You must get me to him!
I promise to, Baine.
This will end with you in a cage, half-orc.
Wild things do not belong in cages.
You have lost more warriors than the one you seek to gain.
Baine! Are you all right?
Yes, my friend. I owe everything to you. Whatever you wish, my father will grant to you.
Centaur are a half-humanoid, half-horse, war-like tribal race. They abound in central and southern Kalimdor, primarily in Desolace and the Barrens, where they engage in constant war against other centaur and tauren tribes. They are savagery and brutality incarnate.
Baine Bloodhoof is the High Chieftain of the tauren tribes of Mulgore and leader of Thunder Bluff. He is the son of the late tauren leader, Cairne Bloodhoof, whom he looked up to as a role model. While Baine has formidable skill on the battlefield, his true talents lie in the arena of diplomacy. He is a strong force for moderation, calm wisdom, and unity within the Horde, especially in their dealings with the Alliance.
Baine fought alongside his father with pride and respect and continued to defend his people when they established a home for themselves in Mulgore. However, in an attack by the centaur on their village, Baine was taken captive and taken back to their camp. He managed to stay alive, but he began to lose hope when all his fellow captives were killed one by one until he was the only one left.
The tauren Tagar told Rexxar to find him and bring him back. So, Baine was rescued by Rexxar, and they battled their way together through hordes of centaur until they finally made it back to Cairne, who was overjoyed to see his son alive. After he was brought back with the help of Bovan Windtotem, Cairne Bloodhoof decided to join Rexxar's party.