Exponential Growth doubles a creature’s power sequentially, not all at the same time. For example, if X is 3 and you target a 2/2 creature, you will double its power once to 4, again to 8, and a third time to 16, making it a 16/2 creature until end of turn.
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 a 5/5 creature -7/-0 so that it’s a -2/5 creature, doubling its power makes it a -4/5 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. (This is not the value of X you chose when you cast the spell)
Last observed at $1.68, up from $1.52 thirty days ago. Over the trailing 90 days the price moved between $0.60 and $3.28 across 1,217 observations. Headline volatility reads high. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
Last observed on Scryfall 17 hours ago at $1.68.
This printing is one of 3 catalogued treatments from PSTX — 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.
This card belongs to *Strixhaven: School of Mages Promos* (released April 2021).
Card #130p in Strixhaven: School of Mages Promos.
Rarity tier: rare. Rares occupy the bottom-of-pack rare slot in standard boosters.
Card type: Sorcery. Color identity: green. Mana cost: {X}{X}{G}{G} (2 converted). Keyword abilities: Double.
Legal in Tlr, Duel, Brawl, Penny, Legacy, and Modern.
EDHrec ranks this card #6,399 in Commander, putting it in the niche-pick tier of the format's playable pool.
Illustrated by Izzy.
Search across TCGplayer, eBay sold, Cardmarket EU, and Star City from the marketplace deeplinks above to compare live listings.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Izzy
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
