The Key to the Vault 
Legendary Artifact — Equipment
Oracle text (EN)
Legendary Artifact — Equipment
Whenever equipped creature deals combat damage to a player, look at that many cards from the top of your library. You may exile a nonland card from among them. Put the rest on the bottom of your library in a random order. You may cast the exiled card without paying its mana cost.
Equip 
Printing details
- Set
- OTJ · 54
- Rarity
- Rare
- Language
- EN
- Artist
- Leon Tukker
- Released
- 2024-04-19
- Prices
- €0.31 · $0.70
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
- CardTrader, Near Mint minimum (EN)
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend | CardTrader, Near Mint minimum (EN) |
|---|---|---|
| November 2, 2026 | €0.34 | €0.15 |
| October 31, 2026 | €0.31 | €0.15 |
| October 29, 2026 | €0.32 | €0.15 |
| October 28, 2026 | €0.31 | €0.15 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low – trend €0.34 30-day avg €0.35 | low €0.08 trend €0.37 30-day avg €0.41 |
| CardTrader (EN) | NM from €0.15 with Zero from €0.31 | NM from €0.42 with Zero from €0.42 |
| CardTrader (any language) | NM from €0.15 | NM from €0.42 |
Cardmarket updated Nov 2, 2026 · CardTrader updated Nov 2, 2026
Buy and look up
Legality
- standard Legal
- pioneer Legal
- modern Legal
- legacy Legal
- vintage Legal
- commander Legal
- pauper Not legal
- alchemy Not legal
- brawl Legal
- competitivebrawl Legal
- duel Legal
- future Legal
- gladiator Legal
- historic Legal
- oathbreaker Legal
- oldschool Not legal
- paupercommander Not legal
- penny Legal
- predh Not legal
- premodern Not legal
- standardbrawl Legal
- timeless Legal
- tlr Legal
Rulings
-
If you cast a spell “without paying its mana cost,” you can’t choose to cast it for any alternative costs. You can, however, pay additional costs, such as kicker costs. If the spell has any mandatory additional costs, those must be paid to cast the spell.
-
You choose whether to cast the exiled card as The Key to the Vault’s triggered ability resolves. If you do, you do so as part of the resolution of that ability. You can’t wait to cast it later in the turn. Timing restrictions based on the card’s types are ignored.
-
If the spell you cast has
in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.