Dark Petition
Sorcery
Search your library for a card, put that card into your hand, then shuffle.
Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, add 
.
- CMC
- 5
- Mana cost
- Color identity
- B
- Rarity
- rare
- Set
- Pioneer Masters
- Price
- —
- EDHREC rank
- #3872
Dark Petition tutors any card in your library for five mana, then refunds three of it as black mana when spell mastery is online — which in dedicated black decks is almost always. The catch is the color: that three-mana rebate is triple black, so it rewards mono-black shells like K'rrik, Son of Yawgmoth far more than it does anything splashing the color, and in those shells it frequently chains directly into a Walk the Aeons or a game-ending sorcery the same turn it resolves.
Best Commanders
Commanders with the highest synergy
K'rrik, Son of Yawgmoth
K'rrik, Son of Yawgmoth converts life into black mana, which means Dark Petition's triple-black rebate is almost always fully absorbed by K'rrik's ability — you're effectively tutoring for two generic mana and some life total, which in a storm or combo shell is a bargain that closes games.
Silverquill, the Disputant
Silverquill, the Disputant runs a high density of instants and sorceries to fuel its triggered abilities, and Dark Petition fits cleanly into that count while also fetching whichever piece of the engine is missing at the moment spell mastery comes online.
Rowan, Scion of War
Rowan, Scion of War reduces the cost of spells by the life paid this turn, which dovetails with Dark Petition's already-discounted rebate to make the tutor effectively free or nearly free in a life-payment-heavy turn — the synergy compounds rather than just stacks.
Toshiro Umezawa
Toshiro Umezawa rewards stacking sorceries and instants in the graveyard, so Dark Petition does double duty: it hits spell mastery easily in a Toshiro pile and fetches the exact removal or combo piece needed while fattening the graveyard count for future triggers.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Commander is where Dark Petition does its best work — the singleton format means you're always hunting a specific card, and the triple-black rebate plugs directly back into whatever five- or six-mana payoff you just tutored for. In Legacy, it competes with Demonic Tutor and Vampiric Tutor, both of which are cheaper and don't require spell mastery, so Dark Petition rarely sees Legacy play outside budget lists. Modern and Pioneer have fewer degenerate tutors legal, which raises Dark Petition's relative standing, but neither format has found a shell that consistently exploits the rebate — it shows up occasionally in fringe black combo builds but isn't a staple. Vintage has access to everything, and Dark Petition simply loses to Demonic Tutor and Vampiric Tutor on rate every time. Oathbreaker is a reasonable home for the same reasons as Commander: singleton pressure plus the rebate fueling your signature spell.
Key Combos
Combo lines featuring this card
Patron of the MoonUyo, Silent ProphetDark Petition
Infinite card draw; Infinite landfall triggers; Infinite magecraft triggers
View on Commander Spellbook ↗Price Context
Current price
unknown tier
Pricing data for Dark Petition isn't currently available in this snapshot, so check Scryfall or your preferred retailer for the live number. Historically it has settled in the budget-to-mid range for a five-mana tutor, making it an accessible pickup for black combo players who can't afford Demonic Tutor.
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Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.