Cheapest priced copy (Jumpstart 2022): $0.35 at Card Kingdom, near mint, their price list as of .
Spark of Creativity 
Sorcery · Uncommon · Jumpstart 2022 · #602
Choose target creature. Exile the top card of your library. You may have Spark of Creativity deal damage to that creature equal to the exiled card's mana value. If you don't, you may play that card until end of turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Jumpstart 2022 | 602 | Uncommon | $0.35 | — |
| Kaladesh | 131 | Uncommon | $0.35 | $1.49 |
5 rulings from Wizards of the Coast
- 20 September 2016If a land card is exiled this way, you can play that land card until end of turn if you have any available land plays.
- 20 September 2016You can't cast Spark of Creativity without targeting a creature. If the creature becomes an illegal target for Spark of Creativity, none of its effects happen. You don't exile the top card of your library.
- 20 September 2016You must pay all costs to play the exiled card. You may pay alternative or additional costs. If the card has any mandatory additional costs, you must pay those.
- 20 September 2016Spark of Creativity doesn't change when you can play the exiled card. For example, if you exile a creature card without flash, you can cast it only during your main phase when the stack is empty.
- 20 September 2016If a card in exile has {X} in its mana cost, X is considered to be 0.