Cheapest priced copy (Innistrad Remastered): $0.59 at Card Kingdom, near mint, their price list as of .
Imprisoned in the Moon 
Enchantment — Aura · Uncommon · Foundations · #156
Enchant creature, land, or planeswalker
Enchanted permanent is a colorless land with "{T}: Add {C}" and loses all other card types and abilities.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
16 printings · $0.59 to $17.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Forgotten Realms Commander | 85 | Rare | $0.69 | — |
| Eldritch Moon | 65 | Rare | $0.69 | $2.49 |
| Foundations | 156 | Uncommon | $0.69 | $0.79 |
| Innistrad Remastered | 69 | Common | $0.59 | $0.79 |
| Innistrad Remastered | 358 | Common | $0.99 | $6.99 |
| Modern Horizons 3 Commander | 188 | Rare | $0.59 | $1.49 |
| March of the Machine Commander | 224 | Rare | $0.59 | — |
| Eldritch Moon Promos | 65p | Rare | $1.99 | $3.49 |
| Eldritch Moon Promos | 65s | Rare | — | $4.49 |
| The List | INR-69 | Common | — | — |
| Secret Lair Drop | 1102 | Rare | $11.99Out of stock | $17.99 |
| The Zeta Set | 20 | Uncommon | — | — |
| The Zeta Set | 141 | Uncommon | — | — |
| The Zeta Set | 262 | Uncommon | — | — |
| Avatar: The Last Airbender Eternal | 14 | Mythic | $2.79 | $6.99 |
| Crimson Vow Commander | 106 | Rare | $0.59Out of stock | — |
5 rulings from Wizards of the Coast
- 13 July 2016At the time the permanent becomes enchanted, Imprisoned in the Moon causes it to lose all abilities except the noted mana ability. Any abilities the permanent gains after that point will work normally.
- 13 July 2016Becoming a land may cause other Auras to become illegally attached. These are put into their owner's graveyard, and any Equipment attached to the land become unattached and remain on the battlefield. Counters on the land remain on it even if they don't do anything.
- 13 July 2016If the enchanted permanent is a land and has land types, it retains those types even though it loses any intrinsic mana abilities associated with them. For example, a Plains enchanted by Imprisoned in the Moon is still a Plains, but it can't tap for {W}, only for {C}.
- 13 July 2016If you remove Imprisoned in the Moon from a planeswalker after tapping it for mana, you can still activate a loyalty ability of that planeswalker even though it's tapped.
- 13 July 2016The permanent will keep any supertypes it previously had. Notably, if Imprisoned in the Moon is enchanting a legendary permanent, that permanent will continue to be legendary.