With its over reliance on the graveyard when it comes to certain combos, not to mention most aristocrats and reanimator decks, a Rakdos deck can be shut off completely by a savvy player recurring a Tormods Crypt, or a timely Scavenger Grounds activation
Collector Ouphe is spectacular in this deck as you'll likely be leaning on lands for your mana and this will shut down all of your opponents' treasures and fast mana, both of which are everywhere in cEDH
I imagine I would be playing a lot more Path to Exile on my own dorks than Therapy on my hand outside of combo
The Restless Lands (WOE/LCI) This partial cycle corrects the mistake of the partial cycle from Battle for Zendikar and gives some great creature lands for the enemy color pairs
Sidisi, Brood Tyrant Sidisi, Brood Tyrant, although a little power-crept these days, is still an interesting self-mill card
1 Collective Resistance