These are prime examples of what works best with Muldrotha effects on permanents that put themselves into the graveyard, allowing you to replay them again and again
Orzhov will gum up the ground with afterlife creatures
One nice thing about this one is it isn't actually a creature itself, so if you're testing to see if a player has more creatures than you, for something like Keeper of the Accord this will combo nicely
At its base, youre hurting your opponents graveyards with Vren, the Relentless, shutting down decks that rely on that game zone for an advantage
Upon the reveal of these new mechanics, many players immediately diverted their resources to gathering decks that avoided using the extra deck, such as Nekroz or Monarchs
Magics Outlaws of Thunder Junction includes a focus on mercenaries as part of the larger outlaw type (including assassins, pirates, rogues, and warlocks)