If you re-ban Golgari Grave-Troll, the deck simply slots in Golgari Thug, and while the deck is slightly weaker since it will dredge fewer cards on average, there's a good chance that, with the amount of support the archetype has, Dredge would still remain one of the best decks in the format
That does not mean you should run zero interaction, but you should prioritize flexible cards that are not embarrassing when hit off Cascade
The rule of thumb: the faster your games end, the better rituals become
Reprints of checklands and shocklands are always welcome, but the real winner from 2018 was Teferi, Hero of Dominaria
Another way you will be draining your opponents is by damaging them for 1 life for each creature that enters the battlefield
So, how are you going to win off of this?