Unlicensed Hearse Unlicensed Hearse is a great sideboard card that can hate out your opponents graveyard whilst turning into a game-ending threat
Use the swarm of tokens as sacrifice fodder and slowly eat at life totals
I would never go back, but it is certainly the kind of thing that tests you day in and day out
In fact, if I see someone running these in a deck like Alela or a UW flyers list, Ill seriously question their approach

Aether Syphon Baxter, Fly in the Ointment Burlfist Oak Chasm Skulker Clinquant Skymage Diviner's Wand Dream Trawler Hoofprints of the Stag Horizon Chimera Human Torch, Johnny Storm Iron Man, Armored Avenger Jace's Erasure Jace's Projection Kianne, Corrupted Memory Lorescale Coatl Lyla, Holographic Assistant Moonring Mirror Nadir Kraken Niv-Mizzet, Parun Niv-Mizzet, the Firemind Ominous Seas Oneirophage Psychic Corrosion Psychic Network Psychosis Crawler Queza, Augur of Agonies Ravenhill Flock Shabraz, the Skyshark Shang-Chi and the Ten Rings Sheoldred, the Apocalypse Sliv-Mizzet, Hivemind (playtest) Sphinx's Tutelage Stark's Ingenuity Starscream, Power Hungry Starving Revenant Teferi's Talent Teferi's Tutelage Teferi, Hero of Dominaria Teferi, Temporal Pilgrim Temmet, Naktamun's Will The Astonishing Ant-Man The Locust God The Watcher in the Water Tolarian Kraken Toothy, Imaginary Friend Vodalian Wave-Knight Wizard Class
These cards all fit into the focus areas I talked about above