Hearthpwn

 Deck is just too hard, there are a few better budget decks out there. But you can actually make it.
As teelolws said before, you need a Manawyrm on turn 1. Anotherone on 3-4. Flamewalkers are not that necessary. After all you shouldnt call this deck "Tempo Mage" you should call it "WyrmMage" lul. Anyways, thumbs up, cause it worked ;)


These is a little collection of every deck ive defeated the Lich King with:
https://www.hearthpwn.com/decks/1041027-the-frozen-throne-beat-arthas-3-decks-each-class

Thx! It works. Needed near 50 tries. Replaced portals by books since I don't have those cards.
A few times I was really close, but not enough:

• Needs Mana Wyrm on turn one.
• Needs to dodge Obliterate targetting one of the Mana Wyrms.
• Needs turn 2 Sorc Apprentice with the ability to cast something that kills / blocks whatever he played.
• Needs turn 3 Flamewaker with a spell.
• Needs to get another mana wyrm out on turn 4 OR use molten reflection on the existing mana wyrm (I used molten reflection instead of fireball)
• Needs to dodge turn 6 Blizzard.
• If the game makes it to turn 7, its over.

Its doable, just will take a LOT of attempts.