To start, let's look over the original list: Grave Danger Started Deck View on Archidekt Commander (1) 1 Gisa and GeralfGisa and Geralf Artifacts (9) 1 Arcane SignetArcane Signet 1 Commander's SphereCommander's Sphere 1 Dimir SignetDimir Signet 1 Grimoire of the DeadGrimoire of the Dead 1 Heraldic BannerHeraldic Banner 1 Sol RingSol Ring 1 Talisman of DominanceTalisman of Dominance 1 Unstable ObeliskUnstable Obelisk 1 Wayfarer's BaubleWayfarer's Bauble Lands (39) 1 Choked EstuaryChoked Estuary 1 Command TowerCommand Tower 1 Dismal BackwaterDismal Backwater 13 IslandIsland 1 Jwar Isle RefugeJwar Isle Refuge 1 Salt MarshSalt Marsh 1 Submerged BoneyardSubmerged Boneyard 1 Sunken HollowSunken Hollow 18 SwampSwamp 1 Temple of DeceitTemple of Deceit Sorceries (12) 1 Army of the DamnedArmy of the Damned 1 Crippling FearCrippling Fear 1 Deep AnalysisDeep Analysis 1 Distant MelodyDistant Melody 1 Enter the God-EternalsEnter the God-Eternals 1 Feed the SwarmFeed the Swarm 1 Necromantic SelectionNecromantic Selection 1 Necrotic HexNecrotic Hex 1 Pilfered PlansPilfered Plans 1 Syphon FleshSyphon Flesh 1 VictimizeVictimize 1 Zombie ApocalypseZombie Apocalypse Instants (5) 1 Cruel RevivalCruel Revival 1 Lazotep PlatingLazotep Plating 1 MurderMurder 1 Sinister SabotageSinister Sabotage 1 UndermineUndermine Enchantments (4) 1 Curse of DisturbanceCurse of Disturbance 1 Liliana's MasteryLiliana's Mastery 1 Open the GravesOpen the Graves 1 Vampiric RitesVampiric Rites Planeswalkers (1) 1 Liliana, Untouched by DeathLiliana, Untouched by Death Creatures (29) 1 Cemetery ReaperCemetery Reaper 1 Champion of the PerishedChampion of the Perished 1 Diregraf CaptainDiregraf Captain 1 Eternal SkylordEternal Skylord 1 Fleshbag MarauderFleshbag Marauder 1 Geralf's MindcrusherGeralf's Mindcrusher 1 Gleaming OverseerGleaming Overseer 1 Gravespawn SovereignGravespawn Sovereign 1 Gray Merchant of AsphodelGray Merchant of Asphodel 1 Havengul LichHavengul Lich 1 Josu Vess, Lich KnightJosu Vess, Lich Knight 1 Laboratory DrudgeLaboratory Drudge 1 Lazotep ReaverLazotep Reaver 1 Liliana's DevoteeLiliana's Devotee 1 Liliana's Standard BearerLiliana's Standard Bearer 1 Lord of the AccursedLord of the Accursed 1 Lotleth GiantLotleth Giant 1 Loyal SubordinateLoyal Subordinate 1 Midnight ReaperMidnight Reaper 1 Mire TritonMire Triton 1 Overseer of the DamnedOverseer of the Damned 1 Scourge of Nel TothScourge of Nel Toth 1 Spark ReaperSpark Reaper 1 Unbreathing HordeUnbreathing Horde 1 Undead AugurUndead Augur 1 Vela the Night-CladVela the Night-Clad 1 Vengeful DeadVengeful Dead 1 Vizier of the ScorpionVizier of the Scorpion 1 Withered WretchWithered Wretch Dead Rising While not the most powerful option for a Zombies deck, Gisa and GeralfGisa and Geralf fly under the radar and provide value and longevity throughout the game

I havent even touched on the commander precons yet, and those are just as exciting
If Locker Room is worth a third of a card I could see Bottomless Pool being worth it, but I suspect Locker Room will be worth less than that
Odds are you probably dont have much else going for you anyway if youre destroying the entire board
Mirrodin is the first setting which is entirely its own, with no connection to Dominaria, and began a trend of Magic sets visiting new planes of existence