Cheapest priced copy (Ixalan): $0.35 at Card Kingdom, near mint, their price list as of .
Pious Interdiction 
Enchantment — Aura · Common · Ixalan · #26
Enchant creature
When this Aura enters, you gain 2 life.
Enchanted creature can't attack or block.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ixalan | 26 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 29 September 2017If the creature this Aura would enchant is an illegal target by the time Pious Interdiction resolves, the entire spell doesn't resolve. It won't enter the battlefield, so its ability won't trigger.