Exponential Growth

All 4 printings of Exponential Growth

Printing	Rarity	Non-foil	Foil	Cardmarket (EUR)	My collection
Strixhaven: School of Mages Promos pstx #130p· 2021Promorare· Cardmarket €0.44 · €0.54 foil	rare	$1.55	$1.51	€0.44€0.54 foil	+ Add, Exponential Growth, Strixhaven: School of Mages Promos #130p
Strixhaven: School of Mages Promos pstx #130s· 2021Promorare· Cardmarket €1.45 foil	rare	—No non-foil printing	$1.74	€1.45 foil	+ Add, Exponential Growth, Strixhaven: School of Mages Promos #130s
Strixhaven: School of Mages stx #130· 2021rare· Cardmarket €0.44 · €0.44 foil	rare	$0.54	$0.60	€0.44€0.44 foil	+ Add, Exponential Growth, Strixhaven: School of Mages #130
Strixhaven: School of Mages stx #318· 2021Extended Artrare· Cardmarket €0.84 · €1.07 foil	rare	$1.11	$3.01	€0.84€1.07 foil	+ Add, Exponential Growth, Strixhaven: School of Mages #318

Prices are TCGplayer market prices in USD for each printing and finish, via Scryfall. They are a guide, not an appraisal.

Rulings (3)

1. 2021-04-16

   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.

2. 2021-04-16

   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.

3. 2021-04-16

   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)