309.5b If a player ventures into the dungeon while they own a dungeon card in the command zone and their venture marker is on that dungeon cards bottommost room, they remove that dungeon card from the game
Doom Whisperer Doom Whisperers stats were very impressive when it first came out
(This effect doesnt end.) +1: Target creature gets -2/-0 until your next turn

Ancestor's Chosen Anger Anurid Barkripper Anurid Brushhopper Anurid Swarmsnapper Aven Fogbringer Balthor the Defiled Barbarian Bully Battlefield Scrounger Battlewise Aven Benevolent Bodyguard Border Patrol Brawn Cabal Trainee Centaur Rootcaster Cephalid Constable Cephalid Inkshrouder Commander Eesha Dwarven Bloodboiler Dwarven Driller Dwarven Scorcher Earsplitting Rats Erhnam Djinn Filth Fledgling Dragon Forcemage Advocate Genesis Giant Warthog Glory Goretusk Firebeast Guiltfeeder Hapless Researcher Harvester Druid Ironshell Beetle Jeska, Warrior Adept Krosan Wayfarer Liberated Dwarf Masked Gorgon Mirror Wall Nantuko Tracer Nomad Mythmaker Nullmage Advocate Phantom Centaur Phantom Flock Phantom Nantuko Phantom Nishoba Phantom Nomad Phantom Tiger Pulsemage Advocate Scalpelexis Selfless Exorcist Shieldmage Advocate Silver Seraph Soulgorger Orgg Spellgorger Barbarian Spurnmage Advocate Suntail Hawk Sutured Ghoul Sylvan Safekeeper Thriss, Nantuko Primus Trained Pronghorn Treacherous Vampire Treacherous Werewolf Tunneler Wurm Valor Vigilant Sentry Wonder Worldgorger Dragon Wormfang Behemoth Wormfang Crab Wormfang Drake Wormfang Manta

MTG 1x Spectral Bears Homelands card MTG Magic the Gathering
As detailed in WotC's The Lost Caverns of Ixalan Mechanics article, descend is connected with three closely related mechanics: Descended, Descend X, and Fathomless Descent