If a creature's power is less than 0 when it's doubled, instead that creature gets -X/-0, where X is how much less than 0 its power is. For example, if an effect has given Bear Cub, a 2/2 creature, -4/-0 so that it's a -2/2 creature, doubling its power and toughness gives it -2/+2, and it becomes a -4/4 creature.
If an effect instructs you to "double" a creature's power, that creature gets +X/+0, where X is its power as that effect begins to apply. Similarly, a creature whose toughness is doubled gets +0/+X, where X is its toughness as the effect begins to apply.
If you control more than one Unnatural Growth, each one applies independently. For example, if you control two copies of Unnatural Growth, a 2/2 Bear Cub becomes a 4/4 creature when the first ability resolves and then becomes an 8/8 creature when the second one resolves.
This printing is one of 3 catalogued treatments from MAR — 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 #84 of *Marvel Universe*, the set that shipped alongside the June 2026 Marvel Universe release.
Card type: Enchantment, color identity green, printed at mythic. Mythic rares historically land in roughly one out of every eight boosters at standard print densities. Mana cost: {1}{G}{G}{G}{G} (5 converted). Keyword abilities: Double.
Legal across the major constructed formats — Modern, Legacy, Vintage, and Commander — plus Standard rotation play.
EDHrec ranks this card #454 in Commander, putting it in the popular-include tier of the format's playable pool.
Illustrated by Alex Ross. Rarix catalogs 6 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Alex Ross
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
