Devour For Power had maybe five cards that let you mill yourself, while Sultai Arisen has 14 at various spots on the curve: Hedron CrabHedron Crab Life from the LoamLife from the Loam Will of the SultaiWill of the Sultai There are 51 cards that mention the graveyard in some capacity, including these excellent grindy midgame pieces: Teval's JudgmentTeval's Judgment Diviner of MistDiviner of Mist Conduit of WorldsConduit of Worlds Kishla SkimmerKishla Skimmer Finally, you need your closers: Lord of ExtinctionLord of Extinction Afterlife from the LoamAfterlife from the Loam Colossal Grave-ReaverColossal Grave-Reaver The deck is just good, not-so-clean, fun with its constant churning of the yard for hijinks and value
Tribute to the World Tree is an absurdly power-crept version of the same green enchantment since it gives you value for smaller creatures, but its daunting mana cost makes it hard to call it strictly better
A couple spells with improvise, like Kappa Cannoneer, allow you to tap Kilo , and you can always attack
The third No More Lies helps with having enough ways to counter Quantum Riddler with just two Flare of Denial
Its certainly a more dynamic card than good old Mox Opal
Both are major United States retailers and tend to have quite a bit of product including recent packs, boxes, and Commander precons
