| Rarity | R |
| # | 241 |
| Creature Type or Sub Type | Legendary Creature — Human Wizard |
| Rules Text Contains | 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.) |
| Game | Magic: The Gathering |
| Set | Duskmourn: House of Horror |