Building a Better Mana Curve

A great Magic: The Gathering deck is not just a pile of strong cards, it is a smooth sequence of plays. The mana curve is the shape of that sequence: how many cards you have at each mana value. Get it right and you have something to do on every turn. Get it wrong and you either flood on lands or sit with a hand you cannot cast. This calculator maps your curve, finds your average mana value, and recommends a land count so your deck actually does what it was designed to do.

How this calculator works

Enter how many cards you run at each mana value. The tool charts the distribution, calculates your average mana value (AMV), and suggests a land count based on established deck-building math for your chosen format.

Reading your curve

Different archetypes want different shapes. Aggressive decks peak at one, two, and three mana so they can apply pressure early. Midrange decks bulge around two to four. Control decks push higher, trading early tempo for powerful late-game spells. There is no single perfect curve, only the curve that matches your game plan.

Land count follows from your average mana value. A lower AMV means you can run fewer lands, while a top-heavy control deck needs more to reliably hit its expensive spells. As a rough guide in a 60-card deck, aggressive decks run about 17 lands, midrange around 24, and control 25 to 27. The calculator refines that based on your actual curve.

Worked example

Say you are building a 60-card aggressive deck with 10 one-drops, 12 two-drops, 8 three-drops, and 4 four-drops.

That is 34 nonland spells with a low average mana value, close to 2.2.
A curve this cheap wants roughly 17 lands, leaving room for a few utility cards.
Because most of your deck costs one to three mana, you will almost always have a play by turn two, which is exactly what an aggressive deck needs.

How to use it

Choose your format so the land recommendation is tuned correctly.
Enter your spell counts by mana value.
Check the shape against your intended archetype and adjust outliers.
Use the suggested land count as a starting point, then playtest and fine-tune.

Tips

Count mana-producing spells and cheap card draw as partial lands when deciding how low you can go.
A curve with a hole at two mana is a common and costly mistake; fill it before adding more expensive cards.
Double-pipped costs, like two of the same color, demand more sources of that color, not just more lands overall.

Frequently asked questions

What is average mana value? It is the mean cost of your nonland cards, and it is the single best predictor of how many lands you need.

Which formats does it support? Multiple constructed formats, each with its own land-count logic.

Does it count lands in the average? No, average mana value is calculated from spells only.

MTG MANA CURVE CALCULATOR

Format

Mana Curve (Non-Land Cards by Cost)

Color Composition (Optional - affects land ratio)

Presets

Results

Curve Breakdown

Formula Reference