Finally, given that some new artifact-centric cards have been printed in Modern Horizons, I expect players will be trying to find the spiritual successor to Ironworks, meaning the Ouphe will be great there as well
You can buy them from the store or as part of a bundle
Finally, Tranquil Frillback acts as a silver bullet in the mirror (against other Golgari Midrange deck) as well as against hyper aggressive decks, decks with powerful artifacts or enchantments, and graveyard recursion decks
Here's a list: Aesthetic Consultation contains Persecute Artist Cardpecker contains Cardpecker, Emcee, Frankie Peanuts, and Ladies' Knight Johnny, Combo Player contains Soul Foundry
First-Sphere Gargantua Unearthing out of the yard at Phyrexian Rager rate is probably not quite good enough, but you could do worse than First-Sphere Gargantua if you're looking to self-mill anyway
To truly understand the game, it's important to familiarize yourself with the different types of cards you'll encounter