Mirthum : Midrange Mechadin (MMM?)

This deck is  kind of a brother of the Egg Hunter, ofc you need survival bcoz your combos start moslty on turn 4, so you need to make more tempo than egg hunter.

Synergy:

Spiritsinger Umbra Carnivorous Cube Mechano-Egg Scorp-o-matic Wild Pyromancer Equality  ways to destroy your eggs, plusDesperate Stand to best effects, ohh also good on Mechanical Whelp.

Sustain: Zilliax and Uther of the Ebon Blade consider to use Zilliax with a  7+ dmg dragon to get back 11+ HP, btw uther is an extra 20HP card. Also consider Bronze Gatekeeper and Annoy-o-Module as  sustain and another method to hatch your eggs.  

The power of Kangor's Endless Army:

Even if your mechs get silenced you will get a new Mechanical Whelp or Mechano-Eggboosted which measn a lot of value. Also consider to big power of Desperate Stand that makes Mechanical Whelp Mechano-Eggplayable again on board after a silence getting the value back of a 6-7 mana card.

Skulking Geist : Avoid Cthun OTK in most of the circumstances, try to make sure your druid opponents plays his 3-4 legendary as a pyro or something else so they dont have more chances to combo.  I have to say im so surprised that Skulking Geist is not working on miracle rogue´s , i played a battle were the enemy copy my pala cards so he have 20 more cards in the deck cost 1. When i used geist nothing happens even when the spells were set to 1 mana value. ( tho new patch fix that shit, or it was the idea) link : https://www.youtube.com/watch?v=q2VqUYEA9zw

 Well i think the deck explain itself , no more comments, just practice, just try to split your magnetic buffs, otherwise you can get from Kangor's Endless Army a simple Scorp-o-matic Glow-Tronand a buffed Mechano-Egg which isnt bad but is not the ideal of the potential this card have.