Trinisphere
Artifact
As long as this artifact is untapped, each spell that would cost less than three mana to cast costs three mana to cast. (Additional mana in the cost may be paid with any color of mana or colorless mana. For example, a spell that would cost 
to cast costs 
to cast instead.)
- CMC
- 3
- Mana cost
- Color identity
- C
- Rarity
- rare
- Set
- Darksteel
- Price
- $26.70
- EDHREC rank
- #4943
Trinisphere is one of the most punishing stax pieces in the format — on the table, it forces every spell to cost at least three mana, which collapses low-curve strategies and tempo plays in one shot. The downside is real: at three mana, you're not cheating it into play, and Oswald Fiddlebender is one of the few commanders who can tutor it up as part of a game plan rather than just jamming it blind.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | not legal |
| standard | not legal |
| vintage | restricted |
| pauper | not legal |
| oathbreaker | legal |
Vintage has restricted Trinisphere to a single copy precisely because it shuts down the format's defining cheap spells — Moxen, Black Lotus, and the cantrip suite all get taxed into irrelevance. Legacy and Modern can run it, though the Modern cardpool has enough three-mana interaction that it's less format-warping there. Pioneer and Standard never had access, and pauper can't touch it by rarity. Commander gives Trinisphere a pass because the singleton rule limits how consistently any deck can assemble it, and 40-life games mean stax pieces face more pressure to close out rather than just lock — but in the right shell it's still oppressive.
Best Commanders
Commanders with the highest synergy
Oswald Fiddlebender
Oswald Fiddlebender can sacrifice a two-mana artifact to search up Trinisphere on demand, making the lock piece a reliable part of the game plan rather than a lucky draw. That tutorability at instant speed is why it shows up in nearly a quarter of all Oswald lists.
Urza, Lord High Artificer
Urza, Lord High Artificer generates colorless mana from every artifact, meaning Trinisphere doesn't slow the Urza player down the way it punishes everyone else at the table. The asymmetric tax is exactly what a prison-tempo build wants.
Meria, Scholar of Antiquity
Meria, Scholar of Antiquity wants a dense artifact board, and Trinisphere contributes to that count while taxing opponents who want to answer it cheaply. The combination of cost restriction and artifact synergy makes it a natural include in Meria stax builds.
Yisan, the Wanderer Bard
Yisan, the Wanderer Bard decks lean on incremental tempo advantages, and Trinisphere buys the turns Yisan needs to verse up and find its win condition without interference. Locking opponents out of one- and two-mana interaction is especially brutal when Yisan's activated ability is doing work every turn.
Grand Arbiter Augustin IV
Grand Arbiter Augustin IV already taxes opponents' spells, and stacking Trinisphere on top creates a mana wall that most decks simply cannot climb over. The two effects don't technically combine, but the cumulative table pressure they create is why Trinisphere appears in over a tenth of all Grand Arbiter lists.
Key Combos
Combo lines featuring this card
Budget Alternatives
Cheaper options that do most of the same work
There's no true budget replacement for Trinisphere — the three-mana floor it sets is a unique effect. Thorn of Amethyst and Sphere of Resistance each add one generic mana to noncreature or all spells respectively, and either can be found for under $2; together they approximate the tax but don't hard-stop zero- and one-mana plays the way Trinisphere does. If the goal is slowing down cheap interaction rather than enforcing a strict floor, either sphere is a reasonable starting point, but they don't replicate the same ceiling.
Price Context
Current price
$26.70 premium tier
At $26.70, Trinisphere sits firmly in premium artifact territory — it's a staple with a long history of demand and no functional reprint that's tanked the price. It holds value because the effect is both unique and format-spanning; any new reprint at scale would move the needle, but absent that, $26 is the floor you're buying into.
Explore
Sources
Mentioned
- Oswald Fiddlebender
- Urza, Lord High Artificer
- Meria, Scholar of Antiquity
- Yisan, the Wanderer Bard
- Grand Arbiter Augustin IV
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.