Click below to see my other guides for The Lich King

Druid    
Hunter    
Mage    
Paladin    
Priest    
Rogue    
Shaman    
Warlock    
Warrior    

• Location: The Frozen Throne: First and final boss of the third wing.
• The Lich King starts the battle with 30 Health and 30 Armor.
• For Hunter he plays The Hunted on his first turn.
• Phase 1: He starts with the ability The Scourge, which costs 2 mana.
• Phase 2: Starts at turn 7 when he equips Frostmourne and summons six Trapped Soul.
  He gets the Passive ability Harvest of Souls until all the Trapped Souls are killed.
• Phase 3: He gets Remorseless Winter on auto-cast for 0 at the start of his turn for the remainder of the game.

Boss Decklist

     Mulligan Guide: It's nice if you can draw a minion or two to minimize the damage you take when he casts The Hunted. If you draw 0 minions you will be taking 20 damage all at once, so it doesn't leave you much room for error. It's best if you can start with Alleycat and Scavenging Hyena.

     Your main goal is to get either a Scavenging Hyena or Vicious Fledgling buffed up to a ridiculous amount and kill him before he gets to turn 7.

     Focus more on going face, because every point of damage counts. He will likely run his minions into yours, but it shouldn't matter. As long as you don't get hit with an Obliterate, keep smacking away at him as quickly as possible.

     If you get hit with Blizzard on turn 6, you may as well restart. There's no way to recover from that and you can't kill all of his Trapped Soul before being killed yourself.

     You could easily replace most of the cards you don't have with various Hunter Secrets. If you'd like to try something else just check out the links below!

Hunter - by lunarphobia
Hunter - by Captain_KitKat
Hunter - by Hejtyja