• Summary Defeat the Lich King with 1 mana Mecha'thun. This is truly not viable way in full run.

• The Deck AAEBAZ8FBIoB9AWgzgLx+wINRugB1wXWBt0KjA7YFNMW3a4Cs7sC2McC/PwCwP0CAA==

1x Equality 1x Doomsayer 2x Prismatic Lens 1x Skulking Geist 1x Mecha'thun should be needed. Fill any other 1 cost spells to complete the deck.

• Plan to Win Turn 1 and 2: nothing to do. Turn 3: summon Doomsayer. Turn 4: use Prismatic Lens and draw Skulking Geist and any 1 cost spell and swap each cost. Turn 5: use Prismatic Lens and draw Mecha'thun and any 1 cost spell and swap each cost and then summon Skulking Geist to destroy all 1 cost spell in the hand and deck. Turn 6: summon Mecha'thun and use Equality, and attack any minion with Skulking Geist to kill him. (I could not kill him because he was frozen in my run...) On next Lich King's turn, he will kill Mecha'thun even though player has no hand and deck.