Hearthstone Curse of Naxxramas: How to Beat Heroic Kel’Thuzad and Sapphiron in the ‘Frostworm Lair’

The final wing of Hearthstone: Curse of Naxxramas is out, and players must be wondering how to beat the final two bosses, Sapphiron and Kel’Thuzad.


Hero Power: Frost Breath (0 mana, destroys all enemy minions that are not frozen)

Defeating Sapphiron, the first boss, in Normal mode is not much of a challenge. The game conveniently spawns a 2/10 Frozen Champion minion that prevents Sapphiron from Freezing your minions that are placed besides it.

Unfortunately, the Frozen Champion is not there in Heroic mode. Sapphiron also has a power 5 mana 8 damage spell, “Pure Cold,” that will quickly bring you health down.

Mage and Hunter are two classes with relatively good card synergy that can deal with Sapphiron.

For Mage, the idea is survive the early game via board control, Freeze Sapphiron’s minions, and go for the win late game when Sapphiron runs out of cards in his hand.

If you have access to the other Naxxramas wings, then this Mage deck is a less costly way to beating the frost wyrm.

Hunter is another way to go against Sapphiron. Use Mad Scientist to get out your Secrets Explosive and Freezing Trap to stop his minions, then wait until you draw Timber Wolf and Unleash the Hounds and have the mana and board control to play them.

If you have big Legendaries like King Krush or Leeroy Jenkins, the fight will be easier, but if not, you can replace it with a cheaper Charge minion, such as in this deck.


Hero Power: (0 mana, deals 3 damage and Freezes enemy hero; 8 mana, take control of random enemy minion)

Finally, the big boss and master of Naxxramas.

The Kel’Thuzad fight unfolds in two phases. The Lich has 45 health and 20 armor in Heroic mode, and will use his first 3 damage Hero Power until you remove his armor.

Kel’Thuzad will then summon two 5/5 Guardians of Icecrown, which have Taunt. He will also switch his Hero Power to be able to mind control a random minion of yours.

If you play Paladin against Kel’Thuzad, he will say that he will fight “with big minions,” and he keeps to his word, playing damage-heavy hitters and Spectral Knights.

Interesting enough, Paladin and Priest are the best classes to go up against Kel’Thuzad because of their healing abilities and spells that create “big minions” of their own.

Priest is probably the better deck to use because of the range of his spells, and his more consistent healing ability.

Mulligan for Northshire Cleric, Deathlord, and Lightwell in your starting hand, control the board early, use Inner Fire and Power Word: Shield to create huge minions, and with some luck, you will take down Kel’Thuzad.