The engine is Sheoldred, the Apocalypse teamed up with Underworld Dreams.
Ob Nixilis can help do 1 damage per drawn card by opponent as well.
Removal spells are Epic Downfall and Meathook Massacre. I prefer exiling opponents creatures.
Meathook Massacre is there just in case.
Ob Nixilis can remove creatures from turn 5 on. He also makes your opponent draw 2 cards to do more damage.
You can also force them to sacrifice with Rankle.
Fell Stinger is to make your opponent not swing unless they want theirs to die.
I used Black fliers for rest of creatures to increase chances of doing damage with them
Bloodthirsty Aerialists get pumped when you draw a card with Sheoldred on the field.
Spawn of Mayhem does 1 damage each turn to both players. Also should be able to cast for only 3 mana Spectacle cost.
Sheoldred will help offset damage to you with +2 health each round.
Blood Pact and Foreboding Fruit are your direct damage spells when you have Sheoldred on the field.
Sheoldred does 6 damage when using those 2 cards. 8 damage if you also have Underworld Dreams on the field too.
If you have Sheoldred, Underworld Dreams and Ob Nixilis the Hate-Twisted on the field you will do 10 damage to your opponent.
If you need to find a Sheoldred or a removal spell you can use it on yourself to draw 2 cards and gain a total of 2 life.
Mirror Box can get you 2 or more Sheoldreds on the field to ramp up the direct damage.
The best opening plays are Turn 3 Fell Stinger or Bloodthirsty Aerialist.
Then Sheoldred on turn 4.
You can use Epic Downfall to remove a creature at your discretion. You will gain 2 life with Sheoldred each turn so you can take some damage to an extent especially early to mid game.
Meathook Massacre to save you in case your opponent floods the field with tokens or cascade.
Best case scenario is you can wipe their board and you can still have Sheoldred and a Bloodthirsty Aerialist still up.
Then after Turn 4 its basically depends on the flow. You dont wanna get overwhelmed. Sheoldred is a big body with deathtouch.
But you wanna get you opponent to draw cards to do direct damage combos and hit them with fliers.
Epic Downfall their flier or creature with reach so you can beatface with Bloodthirsty/Rankle or the other big body fliers.
You want your Doom Whisperer or Spawn of Mayhem out after mid game to help finish them off quicker.
Key is to maintain control over the board and not take lots of damage mid game and let the direct damage and fliers pressure the opponent till they die.
Remember to use Epic Downfall to remove their key mid game and late game creatures.
