Vault 21: House Gambit
Enchantment — Saga
(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Discard a card, then draw a card.
III — Reveal up to five nonland cards from your hand. For each of those cards that has the same mana value as another card revealed this way, create a Treasure token.
- CMC
- 2
- Mana cost
- Color identity
- R
- Rarity
- rare
- Set
- Fallout
- Price
- —
- EDHREC rank
- #11088
Vault 21: House Gambit drops a free Enchantment onto the battlefield — the catch is that an opponent wins a coin flip to steal it. In Ghen, Arcanum Weaver builds, that downside collapses entirely: Ghen recycles enchantments from the graveyard, so losing the Vault to a flip just feeds the engine rather than punishing you.
Best Commanders
Commanders with the highest synergy

Ghen, Arcanum Weaver
Ghen, Arcanum Weaver treats the coin-flip loss as a feature — when an opponent takes Vault 21: House Gambit, Ghen can immediately exile it from their control to reanimate something better, turning the gamble into a repeatable value loop.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | not legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Vault 21: House Gambit is legal in Commander, Legacy, Vintage, and Oathbreaker, and that's where the conversation begins and ends — it's not available in Modern, Pioneer, Standard, or Pauper. Commander is its natural home: the political angle of handing opponents a coin-flip opportunity plays well at a four-player table, and enchantment-matters builds have the infrastructure to weaponize the loss condition. In Legacy and Vintage it's technically castable, but those formats have no patience for variance-heavy enchantments at this mana cost.
Key Combos
Combo lines featuring this card
Price Context
Current price
unknown tier
Current pricing data for Vault 21: House Gambit isn't available, so check Scryfall or TCGPlayer for the live number before buying. Given its narrow synergy profile — primarily enchantment-recursion commanders — expect a modest price ceiling unless a breakout deck pushes demand.
Explore
Sources
Mentioned
- Ghen, Arcanum Weaver
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.