H: Tradelist W: Wishlist (Foils and EDH)

I would keep necropotence and put in reliquary tower to pair with Kozilek the great distortion, you could also think about running Rix manado guildmage and a few other creatures that can deal damage/ cause life loss without having to attack and maybe serve a decent role in late game also card draw is never bad, as for fatties you're gonna want to use big colorless guys aka eldrazi, while the new ones are good the old ones are better because of annhilator, just depends on how douchey you want to be, if you don't want to use the old eldrazi you can use max value guys, you have lord of the void and Balefire dragon already, but options like dragon mage, Dragonlord kolaghan, Geth lord of the vault, havoc demon, hellkite tyrant, rune scarred demon, scourge of the throne, tsabo tavov and soul of new phyrexian come immediately to mind, also having some modifiable board wipes like black Suns zenith, toxic deluge, starstorm and comet storm are something to think about cause they won't automatically wipe your own fatties

Three cards that I absolutely love in Rakdos: Backlash, Cauldron Dance, and Fire Covenant. I'm never disappointed to draw any of them. (Although, Backlash is significantly worse against creatureless decks). Of those three, I'd say that Fire Covenant lends the most strength to Rakdos. Good luck!

Trade opened!