Mulligans
General Mulligans
Survive till post turn 7, then work to destroy him.
This was the deck I used to beat the Lich King with warrior. This was the hardest one I have done yet, and it took me a long time win against him.
Your goal is to survive the early game using weapons and non-combo minions. Until after turn seven, where you brawl the board, and then use armorsmith and frothing berserker so survive and deal damage, while relying on patron and every other minion to beef up their abilities.
The main issue with this strat is blizzard, so try to get one out before the weapon if possible, and then avoid positions where one blizzard causes you to lose. Keep in mind, he has a lot more ways to win than you do, so stay strong and you can win.