Spymaster's Vault
Land
This land enters tapped unless you control a Swamp.: Add
.
,
: Target creature you control connives X, where X is the number of creatures that died this turn. (Draw X cards, then discard X cards. Put a +1/+1 counter on that creature for each nonland card discarded this way.)
- CMC
- 0
- Mana cost
- Color identity
- B
- Rarity
- rare
- Set
- Modern Horizons 3 Promos
- Price
- —
- EDHREC rank
- #1154
Spymaster's Vault puts a steady stream of cards into your graveyard while generating clue tokens — two resources on one permanent, at the cost of some setup to keep the discard flowing. In Oskar, Rubbish Reclaimer builds especially, that discard isn't a cost at all; it's the entire point.
Best Commanders
Commanders with the highest synergy

Oskar, Rubbish Reclaimer
Oskar, Rubbish Reclaimer turns every discard from Spymaster's Vault into a free cast, so the vault functions as both an engine and a hand filter that pays for itself in permanents hitting the battlefield.

Maha, Its Feathers Night
Maha, Its Feathers Night cares about cards leaving your hand and graveyard filling up, and Spymaster's Vault feeds both axes while the clue tokens provide mana-sink utility between cycles.

Alesha, Who Laughs at Fate
Alesha, Who Laughs at Fate wants creatures in the graveyard to reanimate, and Spymaster's Vault mills and discards into that pile while clues smooth out the draw-dependent turns.

Xu-Ifit, Osteoharmonist
Xu-Ifit, Osteoharmonist rewards graveyard density and self-discard synergies, making Spymaster's Vault a natural fit that stocks the yard and generates artifact tokens for incidental payoffs.

Massacre Girl
Massacre Girl decks often lean on sacrifice and attrition loops, and Spymaster's Vault supplies clue tokens as fodder while steadily loading the graveyard for recursion or death-trigger payoffs.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Spymaster's Vault is legal in Commander, Legacy, Modern, Vintage, and Oathbreaker, but its home is Commander — the slower pace and 100-card graveyard-filling payoffs are exactly where a three-mana enchantment that trickles value is worth the slot. In Modern and Legacy, the effect is simply too slow; a three-mana enchantment with no immediate board impact doesn't survive the turn cycle long enough to generate meaningful returns in those formats. Oathbreaker shares the casual, multiplayer tempo of Commander, so the same graveyard and discard strategies that want Spymaster's Vault there translate cleanly.
Key Combos
Combo lines featuring this card
Price Context
Current price
unknown tier
Pricing data for Spymaster's Vault isn't available at the moment — check Scryfall or TCGPlayer for current market values. Given its niche appeal to specific graveyard and discard commanders, it tends to move with the demand of those archetypes rather than broad staple pricing.
Explore
Sources
Mentioned
- Oskar, Rubbish Reclaimer
- Maha, Its Feathers Night
- Alesha, Who Laughs at Fate
- Xu-Ifit, Osteoharmonist
- Massacre Girl
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.