Red is great at looting, but adding another color to help mill seems ideal
Ikoria: Lair of Behemoths (IKO) $470 Ikorias Collector Boosters are all about monsters and movie-style flair
You get to choose four times between a removal effect and a reanimate effect
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
Gaze of Granite $4 Too many people are looking at this card and seeing Pernicious Deed
Golgari Grave-Troll + Golgari Thug Busted in 60-card formats, dredge plays more like I think the designers thought it would in the diluted space of 99-card Commander decks