The cost-reduction ability of Death-Rattle Oni doesn't change its mana cost or mana value, only the total cost you pay. Specifically, Death-Rattle Oni's mana value is always 7.
Death-Rattle Oni
Count any creature that died during the turn, including token creatures, when calculating the cost reduction. For nontoken creatures that died, it doesn't matter what happened to the creature cards after they died.
Last observed on Scryfall 2 months ago at $0.16. Over the trailing 90 days the price moved between $0.03 and $0.16 across 46 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 3 catalogued treatments from MAT — the lineup includes Foil and Nonfoil alongside the standard finish. Across our catalog the Rarix library tracks every variant in the same family so collectors can compare price, scarcity and demand inside a single lineage.
Card #13 of *March of the Machine: The Aftermath*, the set that shipped alongside the May 2023 March of the Machine: The Aftermath release.
Card type: Creature — Demon Spirit, color identity black, printed at uncommon. Uncommons fill the middle-tier slots in a standard booster configuration. Mana cost: {6}{B} (7 converted). Keyword abilities: Flash.
Legal across the major constructed formats — Modern, Legacy, Vintage, and Commander — plus Standard rotation play.
EDHrec ranks this card #16,961 in Commander, putting it in the fringe-play tier of the format's playable pool.
Illustrated by Wayne Reynolds. Rarix catalogs 804 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Wayne Reynolds
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.




































