As far as the tier list itself, here are the definitions S-Tier: A multi-format staple
Others, like Chasm Skulker, grow as you draw cards or as your hand grows, making it important to hit Ms
This 3/3 Rat Warlock costs a fine four

Dungeons of Death Sefris of the Hidden Ways | Illustration by Ryan Pancoast Commander (1) Creature (33) Ashen Rider Baleful Strix Burnished Hart Cataclysmic Gearhulk Champion of Wits Clay Golem Cloudblazer Curator of Mysteries Doomed Necromancer Eternal Dragon Hama Pashar, Ruin Seeker Hostage Taker Karmic Guide Merfolk Looter Meteor Golem Midnight Pathlighter Minn, Wily Illusionist Mulldrifter Murder of Crows Necrotic Sliver Nihiloor Obsessive Stitcher Phantasmal Image Phantom Steed Plaguecrafter Radiant Solar Reassembling Skeleton Ronom Unicorn Shriekmaw Solemn Simulacrum Sun Titan Sunblast Angel Wall of Omens Instant (7) Despark Forbidden Alchemy Grave Endeavor Revivify Swords to Plowshares Utter End Vanish into Memory Sorcery (5) Arcane Endeavor Extract Brain Necromantic Selection Unburial Rites Victimize Enchantment (3) Minimus Containment Propaganda Thorough Investigation Artifact (12) Arcane Signet Bucknard's Everfull Purse Commander's Sphere Component Pouch Dungeon Map Fellwar Stone Immovable Rod Lightning Greaves Rod of Absorption Sol Ring Wand of Orcus Wayfarer's Bauble Land (39) Arcane Sanctum Azorius Chancery Choked Estuary Command Tower Darkwater Catacombs Dimir Aqueduct Esper Panorama Evolving Wilds Exotic Orchard Geier Reach Sanitarium High Market Island x5 Nimbus Maze Orzhov Basilica Plains x7 Port Town Prairie Stream Sunken Hollow Swamp x7 Terramorphic Expanse Thriving Heath Thriving Isle Thriving Moor Commander, Theme, and Strategy We get our first delve into the titular dungeons with this list

The Grinder is between Fable and Valakut Awakening in terms of power, and its closer to Fable than youre going to think
However, the real prize is a silly rare from Morningtide called Shared Animosity