Hearthpwn

Choose Paladin Class... Any Hero power, doesn't matter.

Choose Old Hero deck.

1. Win your first match.
2. Choose Emerald Goggles (If it doesn't come up first, just quit out and come in again til it pops up.)

The rest of this is in priority order

3. Choose any bundles with Sound the Bells!
4. Choose only low cost card bundles.  The lowest one is always the right choice.
5. When comparing 2 bundles of approximately the same cost, choose the one that has less card draw. (You'll understand why later.)
6. Next Passive Treasure round, choose the Stealth option if it's available, but do not choose the extra 2 cards per round option.
7. During Tavern phases, attempt to get Sound the Bells! to 0 mana if you have the option.
8. During Tavern phases, try to get rid of high cost cards (anything 5 mana or above.)

Strategy:
Always try to get Sound the Bells! into your starting hand.  If you can keep your minions to 4 or less, that is ideal.  Keep that mana curve low.  Not ALL card draw is bad, but it can affect your ability to OTK.  Essentially you want to get a bunch of low cost minions on the board, preferably with secrets to protect them.  Once you can empty your hand and begin Sound the Bells! spam, go ahead and do it.  The reason you don't want a lot of card draw is that it interferes and pushes back your Sound the Bells! curve.  As long as you have a single minion on the board (and there's no taunt in front of you) it's easy to get a OTK.  Just keep your hand size down so you can curve out ASAP.

I'm thinking of Master Oakheart in this deck?  I got it in a pack a while ago, and can't figure out what to do with it.  However, it seems like it could be a good way to get Skelemancers on the board late game without feeling like I'm almost wasting a 5 drop.

I play a Warlock deck with C'thun, Ancient Harbinger and DOOM! cards.

Ancient Harbinger has repeatedly drawn DOOM! (Spell card destroying all minions in play and drawing cards equal to number of minions destroyed) which is also a 10 cost card.

My thinking is, and may be confirmed by your experience with Mind Control, that the Ancient Harbinger card is conflating the word "minion" in the card's flavor text (Mind Control, DOOM! et. al.) with an actual minion card.  Either that, or the Ancient Harbinger card's effect is to draw any 10 cost card, and the flavor text on there is wrong.

I've reported on the Hearthstone Bug Report forum personally, though it may be good to have more people do that.