Hearthpwn

July 23rd, 2022:
-1 Rustrot Viper
+1 Piggyback Imp
This deck should be fast enough to smorc down most decks before any really powerful weapons (like from Cariel's hero card) can make a difference.

--------added deck walkthrough--------

July 15th, 2022:
Will update deck as new cards get revealed, deck walkthrough will come after all cards are revealed, deck guide will come after expansion releases.

DECK WALKTHROUGH
2x Flame Imp
2x Flustered Librarian
2x Wicked Shipment
2x Bloodbound Imp
2x Imp Swarm
2x Impending Catastrophe
2x Vile Library
2x Fiendish Circle
2x Imp Gang Boss
2x Piggyback Imp
2x Mischievous Imp
1x Dreadlich Tamsin
1x Imp King Rafaam

All of the cards above were chosen simply because they are the best cards in the "Imp package" which is the whole theme of this deck... They are also relatively low cost, even your "finisher" cards (Rafaam and Tamsin) are only 6 mana, which makes this feel like an old-school demon zoo lock deck.

That leaves us with 6 cards left to build the deck and given that we are building this as a hyper aggresive zoo lock, we fill out the remainder of the deck with the following;

2x Voidwalker ---- Solid stats for a 1 drop, it's a demon for Bartender/Amalgam synergy and with taunt it can protect your face or your imps on board (especially if you buff it with Vile Library).

2x Amalgam of the Deep ---- Decent stats for a 2 drop and it lets you discover a demon (you have a 33.3% chance to discover an "Imp" card). It's also a demon itself for Bartender synergy.

2x Shady Bartender ---- Just a nice big buff for all your demons on board, simple as that.

POTENTIAL OPENERS & COMBOS
Turn 1: Flame Imp or Wicked Shipment or Voidwalker
Turn 2: Amalgam of the Deep 

Turn 1: Flustered Librarian
Turn 2: The Coin + Fiendish Circle

Turn 2: Vile Library
Turn 3: Fiendish Circle

Hand Refill: Fiendish Circle + Impending Catastrophe = Draw 5

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Finally, here's a couple of synergy cards I chose NOT to include and why.

Seeds of Destruction ---- while it does have Imp synergy, it's just too slow.... 2 mana to do nothing and then maybe get some 3/3 imps later in the game doesn't help with an all out aggro strategy.

Impfestation ---- while it can be powerful and has Imp synergy, it's too situational and costs too much mana.... 6 mana to deal 3 damage to every enemy minion and MAYBE get a couple of 1-2 health imps on board is just not worth it.

Sire Denathrius ---- Seems like it could be a powerful finisher, but the goal of this deck is to essentially smorc your opponent down by turn 6-7 (earlier if possible). A 10 mana card doesn't help with that goal. This deck also has no way to tutor Denathrius out, so you can't guarantee if and when you'll draw him.

If you really want to run Denathrius as a secondary win condition, you could however just remove 1 of either the Imp Gang Boss or Piggyback Imp (those are likely the weakest of the Imp cards in the deck)