Cheapest priced copy (Innistrad: Double Feature): $0.69 at Card Kingdom, near mint, their price list as of .
Curse of Shaken Faith 
Enchantment — Aura Curse · Rare · Innistrad: Midnight Hunt · #134
Enchant player
Whenever enchanted player casts a spell other than the first spell they cast each turn or copies a spell, this Aura deals 2 damage to them.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $0.69 to $5.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad: Double Feature | 134 | Rare | $0.69 | $5.99 |
| Innistrad: Midnight Hunt | 134 | Rare | $0.69 | $0.99 |
| Innistrad: Midnight Hunt | 353 | Rare | $1.29 | $0.99 |
| Innistrad: Midnight Hunt Promos | 134p | Rare | $2.29 | $1.49 |
| Innistrad: Midnight Hunt Promos | 134s | Rare | — | $1.49 |
One ruling from Wizards of the Coast
- 24 September 2021If a player who has already cast a spell this turn becomes enchanted by Curse of Shaken Faith, casting more spells the same turn will cause the ability to trigger.