Neheb | FEUER FREI! (EDH / Commander)

Rammstein - FEUER FREI!
https://youtu.be/ZkW-K5RQdzo

I got Neheb from a Xmas present two years ago. The deck was amazing and I loved it. But with time I evolves my playstyle towards monoblack and forgot about other colors.
But oh boy, Neheb got some cool toys recently (himself included as Neheb, Dreadhorde Champion). So in my quest to play less powerful decks I'm coming back to him but with tons of improvements.

Our goal here is to play Neheb asap and then we start to burn everyone (yeah, we're included most of time) to get tons of red mana.
Khorvath's Fury is a card I like a lot for him, giving us a nerfed wheel while making damage to our opponents (or wheel the monoblack player after a tutor) to get mana so we can play what we've drawn.
Our best finishers are Jaya's Immolating Inferno and Comet Storm. Fall of the Titans is good. We have to be careful with Earthquake and Rolling Earthquake since it damages us and Neheb.

The deck is kinda budget, so several upgrades can be made. Akroma's Memorial, Dockside Extortionist, Reforge the Soul, Knollspine Dragon, Reiterate, Fork...
I did not include Aggravated Assault because I like the stormy Neheb, not can infinite Combo, but it would be a really good addition if you like it.