Inquisitor Greyfax
Legendary Creature — Human Inquisitor
Vigilance
Unquestionable Wisdom — Other creatures you control get +1/+0 and have vigilance.
Hunt for Heresy — ,
: Tap target creature an opponent controls. Investigate. (Create a Clue token. It's an artifact with "
, Sacrifice this token: Draw a card.")
- CMC
- 4
- Mana cost
- Color identity
- BUW
- Rarity
- mythic
- Set
- Warhammer 40,000 Commander
- Price
- —
- EDHREC rank
- #9480
Inquisitor Greyfax lands on board and immediately grants your whole team vigilance and +1/+1, then taxes your opponents with a drain trigger every time a creature you control deals combat damage. The cost is five mana for a legendary creature with no built-in protection — but in the right shell, that stat line pays for itself inside two attacks.
Best Commanders
Commanders with the highest synergy

Marneus Calgar
Marneus Calgar draws a card each time a nontoken creature enters, and Inquisitor Greyfax turns every swinging creature into a drain trigger — together they generate card advantage and life loss simultaneously, rewarding the wide board Calgar already wants to build.
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 |
Inquisitor Greyfax is a Commander card through and through — the value is cumulative over multiple turns, which is exactly what a 100-card singleton format rewards. The static vigilance buff matters most in creature-heavy go-wide builds that want to attack without tapping down their blockers, and the drain trigger stacks up meaningfully in the longer games EDH produces. Legacy and Vintage are legal formats on paper, but a five-mana do-nothing-immediately legendary has no realistic role in either — those formats end before Greyfax recoup her cost. Oathbreaker is the one exception worth noting: as a signature spell pairing or as part of a life-drain Oathbreaker shell, the drain triggers can close games faster than they can in Commander.
Key Combos
Combo lines featuring this card
Price Context
Current price
unknown tier
No current price data is available for Inquisitor Greyfax — check Scryfall or your preferred vendor for the live number before buying. Given her narrow appeal outside Commander and her Warhammer 40,000 precon origins, she has historically sat in budget-friendly territory, but verify before assuming.
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Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.