Cheapest priced copy (Throne of Eldraine): $0.99 at Card Kingdom, near mint, their price list as of .
Irencrag Feat 
Sorcery · Rare · Throne of Eldraine Promos · #127p
Add seven {R}. You can cast only one more spell this turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.99 to $16.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Throne of Eldraine | 127 | Rare | $0.99 | $1.49 |
| Throne of Eldraine | 362 | Rare | $2.99 | $16.99 |
| Throne of Eldraine Promos | 127p | Rare | $0.99 | $3.99 |
| Throne of Eldraine Promos | 127s | Rare | — | $2.29 |
4 rulings from Wizards of the Coast
- 4 October 2019Irencrag Feat's effect doesn't care how many spells you've cast so far in the turn. You can cast only one more.
- 4 October 2019Irencrag Feat's effect doesn't allow you to cast any spell you couldn't otherwise cast. For example, if an effect says you can't cast more than one spell each turn, Irencrag Feat won't let you cast a second.
- 4 October 2019If an effect allows or instructs you to cast another spell after you cast one more, you can't do so. The restriction of Irencrag Feat takes precedence over that permission.
- 4 October 2019Irencrag Feat's effect doesn't stop you from activating any abilities or from playing lands.