Hearthpwn

So you may ask, why do we have a lot of minions?

The main idea is to overvalue over your opponent with Hagatha by playing so many minions with powerful battlecries on board and generate spells by Hagatha's hero power with the addition of fuel by Spirit Echo, if you still don't manage to get her, that's ok! Because with Phantom Militia and Ghost Light Angler, the cores of this deck, will save you on the curve by late game. Also Grumble, Worldshaker and Zola the Gorgon can also add your minion(s) back to your hand, the best target is Phantom Militia and Ghost Light Angler!

Weak combo: Play some echo cards and use Zola the Gorgon or Spirit Echo on Echo minions
Standard combo: Play Spirit Echo on your filled board and use Zola the Gorgon on your desired target before you use Spirit Echo so you can get another echo minion and Zola the Gorgon
Great combo:  Play Grumble, Worldshaker on your filled board and activate their battlecries again!

Cards have been added to this deck when final stream revealed:

1+ Kalimos
2+ Fire Elemental
2+ Tar Creeper
2+ Ghost Light Angler 

Updated:

-2 Doomsayers
+1 Bloodlust (For win condition), and +1 Volcano (Gaining board control)

Crazed Alchemist is there just to counter Witchwood Grizzly or high health minions. Earth Shock will be value to deal with Doomsayer and Tar Creeper, and any other buffed minion such as Twilight Drake and Bewitched Guardian.

If Mossy Horror becomes a thing in the meta, replace Phantom Militia with Walnut Sprite

You may also add Lorewalker Choin place of Doomsayer... I've never played that card before but I'm pretty sure he could fit in this minion-based deck with many taunt minions!