This is a deck that's meant to advance the build I tried last rotation focused on stealing your opponents' stuff, hitting them with it, and then getting it off the board.
Here are the most important things to know:
After taking our opponent's stuff, we can kill it with an Exemplar of Strength or perhaps a Plague Belcher, allowing us to fully use those creatures to our advantage as big boys that put Rhonas online and serve as immediate threats. For example: Kari Zev's Expertise can take your opponent's Heart of Kiran, then cast an Exemplar of Strength, tap the Exemplar to crew Heart, put the counters on Heart. Now you have a 4/4 on board and your opponent's Heart is turned into a lousy 1/1.
You can also go the old-school route here, sacrificing your opponents' stuff to either Yahenni or Defiant Salvager. Or use bone splinters to 2-for-1 them.
Dread Wanderer and Scrapheap Scrounger are great here. We can discard them for our Brawlers or to Key to the City --as well as feed them to Yahenni-- and it's very easy to empty our hand / keep our graves full so they can come back again and again. Especially if you can get out your Plague Belcher, those wanderers get nasty.
Lastly, new Lili can be a huge lifesaver. She creates blockers you'll need and, my favorite interaction. Can bring back an exemplar or initiate for free you can use to kill a creature you already wrangled.