Hearthpwn

Credits for the Deck Idea goes to: MarkMcKz

Here is his deck if your want to check it out: https://www.hearthpwn.com/decks/1325259-strength-in-numbers-otk

Now, the idea of this is simple and the same as the author had with it. You play Strength in Numbers , spend mana on your minions generated by Witchwood Apple and Crystalsong Portal , summon Malygos for free and go double Swipe and double Moonfire to the opponent's face for 30 damage.

I made a couple of changes to the original deck trying to improve its worthiness.

I add a second Strength in Numbers bc only having 1 ends up in me drawing Malygos before even having the chance of playing the quest first. Even though once u played the first-one, the other become a dead card, this way u have better changes of having it in your opening hand.

Replace the two Wispering Woods with two Savage Roar in order to have a second winning condition. U are constantly summoning multiple minions on the battlefield even though u have none actual minion in your deck. So maybe u have a full board of 2/2 Treants and the change of making a double Savage Roar by turn 6/7/8 before having your Malygos combo.

I add the 2 Crystalsong Portal to have a better chance of completing the sidequest and making the summoning Malygos easier. And on a plus side, this card makes your board presence a lot more consistent bc you always will get 3 random Druid minions unless your forgot and have one of the Treants generated by Witchwood Apple in your hand.

So, this way, you have the main winning goal that is the OTK with your free Malygos in an much achievable way. And a back up plan with your Savage Roar and an almost full minion board.

Hope you like it at least to give it a try and have a laugh or two.