Hearthpwn

Hi guys. I just wanted to share my Fatigue mage deck I used to beat Highlord Omokk on Heroic mode, since apparently no one shared a similiar list.

Omokk's Heroic Hero power costs 0 mana and destroys a random minion of us. His deck is full of Ogres so, if you don't have any minions, the ogre will have 100% chance to hit your face and do some big damage. This deck focuses on simply countering Omokk's moves: every card in this deck is here to resist through the game (Ice Barrier, Ice Block, Healbot, Vendor) and simply countering every move.

Here is a list of what to use against his minions:

Ogre Brute, Ogre Magi and Dunemaul Shaman: Flame Cannon, Frostbolt + Hero Power

Mogor the Ogre: every 6+ damage spell (preferably Fireball), Polymorph + Hero Power

Blouderfist Ogre: this is one of the hardest ogre to defeat. Fireball + Hero Power, Flame Lance, Polymorph + Hero Power.

Ogre Ninja: the trickiest to remove, sometimes you need to stall the game with the frost spells or make him attack you and activate Vaporize.

Abusive Sergeant, Elven Archer, Cruel Taskmasker, Loot Hoarder: Hero Power.

Beware of Dunemaul Shaman, you should try to remove him ASAP or at least freeze him because Omokk has Charge in his deck, which can lead to lots of damage from a single card. Keep also in mind that a good part of the deck consists in 4 or lower health minions, so they're in Flamestrike range. A good play is using Blizzard to hit every minion, freeze them (Ogre Ninja and Mogor will reach 4 Health), then the turn after hit them with Flamestrike.

Mad Scientist is here to exploit the opponent's Hero power, but it could be counterproductive since this deck is entirely based on countering the opponent until Omokk finishes his deck. Mad Scientist will grab an useful Secret but it will thin your deck. He isn't very useful so, if for some reason you have Blackrock Mountain and not Naxxramas, you can just go without him.

Mirror Image is here to have some protection if you don't have any freeze spell, but its main goal is to combo it with Antonidas. Him + Mirror Image will generate a Fireball and 2 tokens, if you're lucky Antonidas will survive the next turn and give you other Fireballs. Don't be greedy with Antonidas, if you have to play Frost Nova and you have 10 Mana, just play Antonidas + Frost Nova: this will give you a Fireball to counter a Blouderfist Ogre or Mogor.

Try to mulligan for Flamecannon, Frostbolt and Flamestrike. Flamestrike will be useful since you will certainly need it at a certain point of the game.

Try to keep in mind the Ogres you defeated so you can manage your spells more efficently. Omokk runs 1 Mogor the Ogre, 2x of every Ogre except for Ogre Brute, that is present in 3 copies. If you think you won't need a Fireball or a Frostbolt because you still have a Flame Lance and you killed the high health Ogres, feel free to use them againt Omokk himself to secure a win. He will accumulate a lot of armor during the game, so you can still lose if you go into fatigue with low health. When you can't use your Hero Power efficiently, just hit Omokk's face.

You will find that Ice Block and Antonidas aren't that needed, so there's no need to craft them if you don't have them. Just replace Iceblock with another Heal option (such has Illuminator since you play lots of secrets, or Earthen Farseer). Antonidas job isn't replicable, but you can replace him with other damaging spells such as another Flame Lance. You should consider to replace the Mirror Images if you don't include Antonidas in the deck. Dragon's Breath is decent to weaken the ogres or kill the ones with low health.

The game will be long, but it's pretty straightforward. Good luck!