Solve the Equation
Sorcery
Search your library for an instant or sorcery card, reveal it, put it into your hand, then shuffle.
- CMC
- 3
- Mana cost
- Color identity
- U
- Rarity
- rare
- Set
- Secret Lair Drop
- Price
- $5.21
- EDHREC rank
- #907
Solve the Equation is a three-mana tutor for any instant or sorcery — unconditional, no restrictions, straight to hand — which puts it in the same sentence as the best spell-based tutors in Commander. Decks that want a specific win condition like Approach of the Second Sun, or commanders like Vadrik, Astral Archmage who need the right spell at the right time, run this without a second thought.
Best Commanders
Commanders with the highest synergy
Vadrik, Astral Archmage
Vadrik, Astral Archmage turns instants and sorceries free or near-free as the game goes long, so Solve the Equation functions as a zero-cost tutor mid-to-late game — it finds whatever spell closes out the loop or wins on the spot.
Ral, Monsoon Mage
Ral, Monsoon Mage triggers off every instant and sorcery cast, so Solve the Equation pulls double duty: it finds the spell that wins the game and counts as a spell trigger on the way there.
Stella Lee, Wild Card
Stella Lee, Wild Card copies spells whenever you've cast enough in a turn, making every tutor a potential multiplier — Solve the Equation grabs the piece that pushes over the copy threshold or closes the storm count.
Gale, Waterdeep Prodigy // Scion of Halaster
Gale, Waterdeep Prodigy // Scion of Halaster rewards a dense instant and sorcery suite, and Solve the Equation slots in as a guaranteed bullet-finder that keeps the spell count high and the consistency tighter.
Mizzix of the Izmagnus
Mizzix of the Izmagnus discounts instants and sorceries based on experience counters, so Solve the Equation gets cheaper as the game progresses and reliably finds the overloaded finisher or combo piece Mizzix needs to close.
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 Solve the Equation does its best work — singleton means the card you need is always exactly one copy deep, and a three-mana unconditional instant-or-sorcery tutor is exactly the tool spell-centric decks pay for. In Modern and Pioneer, Solve the Equation competes against a faster clock and more targeted tutor options, and three mana at sorcery speed is a real cost in those formats; it sees fringe play in dedicated spell-combo shells but isn't a staple. Legacy and Vintage have access to cheaper, less conditional tutors, which pushes Solve the Equation to the margins there. Oathbreaker mirrors the Commander case — spell-based oathbreakers get full value out of the unconditional line.
Key Combos
Combo lines featuring this card
Budget Alternatives
Cheaper options that do most of the same work
Mystical Tutor is the natural comparison — it's cheaper to cast but puts the card on top rather than in hand, which is a meaningful downgrade in most spots. If you want true hand-to-hand replacement at a lower price point, Long-Term Plans and Merchant Scroll cover narrower slices: Merchant Scroll is cheaper in dollars and finds blue instants cleanly, while Long-Term Plans hits anything but buries the card three deep, making Solve the Equation the cleaner choice whenever the budget allows.
Price Context
Current price
$5.21 mid tier
At $5.21, Solve the Equation sits in the mid tier — meaningful but not a budget-breaker for a card filling a tutor slot. It's seen enough reprints to stay accessible, and demand from spell-combo Commander decks keeps the floor stable without much ceiling risk.
Explore
Sources
Mentioned
- Approach of the Second Sun
- Vadrik, Astral Archmage
- Ral, Monsoon Mage
- Stella Lee, Wild Card
- Gale, Waterdeep Prodigy // Scion of Halaster
- Mizzix of the Izmagnus
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.