If a land hasn't entered the battlefield under your control during your turn by the time your end step begins, Zimone's ability won't trigger at all. You won't be able to put a land onto the battlefield under your control during your end step in time to have the ability trigger.
If you don't control a prime number of lands as Zimone's ability tries to resolve, it won't resolve.
There are a few more prime numbers, but we couldn't fit them all on the card. (Some of them would take up more room than we have in the text box by themselves, but you probably won't control that many lands.)
Last observed on Scryfall 2 months ago at $0.26. Over the trailing 90 days the price moved between $0.02 and $0.39 across 83 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 2 catalogued treatments from DSK — the lineup includes Borderless 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 #366 of *Duskmourn: House of Horror*, the set that shipped alongside the September 2024 Duskmourn: House of Horror release.
Card type: Legendary Creature — Human Wizard, color identity green/blue, printed at rare. Rares occupy the bottom-of-pack rare slot in standard boosters. Mana cost: {1}{G}{U} (3 converted).
Legal across the major constructed formats — Modern, Legacy, Vintage, and Commander — plus Standard rotation play.
EDHrec ranks this card #11,888 in Commander, putting it in the fringe-play tier of the format's playable pool.
Illustrated by Sam Wolfe Connelly. Rarix catalogs 48 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Sam Wolfe Connelly
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
In case you do end up with more than 31 lands, the remaining prime numbers below 100 are 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and 97.
