Helm of Possession
Artifact
You may choose not to untap this artifact during your untap step.
, 
, Sacrifice a creature: Gain control of target creature for as long as you control this artifact and this artifact remains tapped.
- CMC
- 4
- Mana cost
- Color identity
- C
- Rarity
- rare
- Set
- Tempest
- Price
- $4.86
- EDHREC rank
- #14543
Helm of Possession steals any creature on the board indefinitely, as long as you can keep feeding it a sacrifice — that's a repeatable Control Magic stapled to an artifact at four mana total to set up. Decks that generate disposable tokens or flicker sacrifice fodder get obscene mileage out of it; everyone else should think twice about the upkeep cost.
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 |
Commander is where Helm of Possession earns its reputation — sacrifice-matters commanders like Prossh, Skyraider of Kher, Korvold, Fae-Cursed King, and Tevesh Szat, Doom of Fools generate the fodder needed to hold the Helm indefinitely, turning it into a permanent theft engine that dominates tables. Legacy and Vintage technically allow it, but permanent theft at four mana with an ongoing creature tax moves too slowly against those formats' kill conditions — it sees essentially no play there. Oathbreaker mirrors the Commander experience at a smaller scale, and any sacrifice-synergy planeswalker strategy can abuse it just as effectively.
Key Combos
Combo lines featuring this card
Price Context
Current price
$4.86 cheap tier
At $4.86, Helm of Possession sits in the cheap tier — strong value for an effect that would cost significantly more on an instant or sorcery. It's held a stable floor for years given consistent Commander demand, so picking one up now is straightforward.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.