With Talrand and just a couple of drakes on board, you can cast Mass Polymorph, get all three creatures out of your deck, and start comboing off
Prioritize color fixing for 3+ color decks
There are even some ongoing schemes that stay in play until their abandon condition happens, giving you a long-lasting advantage: This really gives them a huge advantage, and all three opponents will have to work together to take them down
Of them, my favorite is Songs of the Damned for its mechanics, and Yoke of the Damned for its name, art and concept
Because it's not yet out of the price range of most Commander players, it's one of the most played cards in the format
Cosmogrand Zenith Like with Monastery Mentor and friends, this gets better with a bunch of cheap stuff so that this can consistently make bodies