Ulamog's Crusher is generally going to be better at closing games out, but the fact that you can cycle this away gives it a little more versatility
10 Summon Undead Reanimator is a deck that hasn't been able to break into the top of the metagame
These cover early pressure, combat math, card draw, and wide-board damage
Its also incredibly hard to interact with favorably
It works thematically but having Hakka bounce to let you scry takes a mediocre ability and makes it even worse

At a rate of approximately 1:7 for Sets: Kaladesh Remastered , Adventures in the Forgotten Realms , Streets of New Capenna , Alchemy: New Capenna , Alchemy Horizons: Baldur's Gate , Dominaria United , Phyrexia: All Will Be One , Alchemy: Phyrexia , March of the Machine , The Lord of the Rings: Tales of Middle-earth , Wilds of Eldraine , Alchemy: Eldraine , Alchemy: Ixalan , Alchemy: Karlov Manor , Outlaws of Thunder Junction , Modern Horizons 3 , Bloomburrow , Alchemy: Bloomburrow , Duskmourn: House of Horror , Alchemy: Duskmourn , Magic: The Gathering Foundations , Aetherdrift , Alchemy: Aetherdrift , Tarkir: Dragonstorm , Alchemy: Tarkir , Edge of Eternities , Alchemy: Edge of Eternities , Magic the Gathering | Avatar: the Last Airbender , Lorwyn Eclipsed, Secrets of Strixhaven, Alchemy: Strixhaven At a rate of approximately 1:6.5 for Shadows over Innistrad: Remastered At a rate of approximately 1:6 for Sets: Amonkhet Remastered , March of the Machine: The Aftermath