The Key to the Vault Price
5 printings · 2 sets · first printed 2024
The Key to the Vault has been printed 5 times across 2 sets, first in 2024. Right now the cheapest printing is Outlaws of Thunder Junction #373 at $0.43, while the most expensive is Outlaws of Thunder Junction #320 at $1.26 — about 3× more. The median across 5 priced printings is $0.79. The cheapest non-foil copy is Outlaws of Thunder Junction Promos #54p at $0.54. Reprint risk: LOW — Reprinted 5x historically, most recently in 2024 -- no dedicated reprint sets or recent activity.
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Every The Key to the Vault Printing, Compared
Cheapest first · unpriced last| Printing | Year | Price | Dealer Buys |
|---|---|---|---|
| Outlaws of Thunder Junction #373 (R) Foil Cheapest | 2024 | $0.43 | $0.30 foil |
| Outlaws of Thunder Junction Promos #54p (R) | 2024 | $0.54 | $0.60 |
| Outlaws of Thunder Junction #54 (R) | 2024 | $0.79 | $0.10 |
| Outlaws of Thunder Junction Promos #54s (R) Foil | 2024 | $0.99 | $0.72 foil |
| Outlaws of Thunder Junction #320 (R) | 2024 | $1.26 | $0.80 |
Prices are the latest nightly market price; a printing with no tracked price shows a dash. Dealer buylist is Card Kingdom's current offer via MTGJSON, shown where one exists.
Equip
Legality is a property of the card, not the printing, so it is identical for all 5 versions.
Official Judge Precedents
3 PrecedentsIf 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.