First printed in Duskmourn: House of Horror (2024)
All 5 prints
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Legendary Creature — Human Wizard
At the beginning of your end step, if a land entered the battlefield under your control this turn and you control a prime number of lands, create Primo, the Indivisible, a legendary 0/0 green and blue Fractal creature token, then put that many +1/+1 counters on it. (2, 3, 5, 7, 11, 13, 17, 19, 23, 29, and 31 are prime numbers.)
1/1
- Illustrated by
- Ekaterina Burmak
Legality
- Legal in
- Standard, Pioneer, Modern, Legacy, Vintage, Future Standard, Historic, Timeless, Alchemy, Penny Dreadful, Gladiator, Commander, Duel Commander, Tiny Leaders, Oathbreaker, Brawl, Standard Brawl, Competitive Brawl
- Not legal in
- Pauper, Premodern, Old School 93/94, Pauper Commander, PreDH
Rulings (4)
- 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.)
- If you don't control a prime number of lands as Zimone's ability tries to resolve, it won't resolve.
- 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.
- 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.
Prices
MTGO price: 0.006 TIX, the cheapest non-foil print (average sell price on GoatBots, 29 Oct 2026).
In Limited on MTG Arena
Win rates in Arena drafts and sealed, retrieved from 17Lands (CC BY 4.0).
| Set | GIH WR | vs set | IWD | Games |
|---|---|---|---|---|
| Duskmourn: House of Horror (DSK), Premier Draft | 61.7% | +7.2 | +10.5 | 22875 |
| Duskmourn: House of Horror (DSK), Sealed | 60.9% | +5.0 | +7.9 | 1421 |
- GIH WR
- win rate of the games in which the card was in the opening hand or drawn
- vs set
- points above or below the average win rate of all decks in the set
- IWD
- improvement when drawn: GIH WR minus the win rate when the card stayed in the library
- Games
- games in which the card was seen