With Populate, it's safe to assume that tokens will play a big role in this deck also, so adding more cards that directly address or interact with tokens is another solid route this deck may take

Decklist: Strefan, Maurer Progenitor in Commander Strefan, Maurer Progenitor | Illustration by Chris Rallis Commander (1) Creature (35) Anje, Maid of Dishonor Anowon, the Ruin Sage Blood Artist Bloodline Necromancer Bloodlord of Vaasgoth Bloodsworn Steward Bloodtithe Harvester Bloodtracker Butcher of Malakir Champion of Dusk Cordial Vampire Crossway Troublemakers Exsanguinator Cavalry Falkenrath Forebear Falkenrath Gorger Falkenrath Noble Florian, Voldaren Scion Indulgent Aristocrat Ivora, Insatiable Heir Kamber, the Plunderer Malakir Bloodwitch Markov Enforcer Midnight Arsonist Necropolis Regent Nirkana Revenant Olivia's Attendants Olivia, Crimson Bride Patron of the Vein Sanctum Seeker Scion of Opulence Stromkirk Captain Timothar, Baron of Bats Vampire Socialite Voldaren Bloodcaster Voldaren Epicure Instant (5) Blood for the Blood God

These two 60-card decks were originally designed by a team of Chinese artists, writers, and folklorists to explore a new branch of magic lore rooted in Chinese aesthetics and mythology
Only a handful exist, making it a "grail" for obscure collectors
Multani, Yavimayas Avatar and Bone Dragon offer large late-game threats that you can have access to without Atzal, Cave of Eternity
Imagine creating 20 1/1 tokens, or 20 Treasures, and its all possible