MtG Manabase Builder

required

castles

actual

total number of lands

number of lands producing

number of lands producing

number of lands producing

number of lands producing

number of lands producing

number of lands producing

number of lands producing

number of lands producing

number of lands producing

number of lands producing

number of lands producing

number of lands producing

number of lands producing

number of lands producing

number of lands producing

Submit

Toggle Hybrid Mana

color requirements and min/max will ALWAYS be met, further optimization takes scores into account

score

min

max

Basic Lands

Fabled Passage

Shocklands

Temples

Triomes

Checklands

count Fabled Passage as fractional source (Frank suggests 0.67 for 3 color decks)

Submit

How many lands should I play?

Check out Frank Karsten's awesome article.

How many sources of each color should I play?

Check out Frank Karsten's other awesome article.

How does this work?

Manabase building can be modeled as a linear program with integer variables, where all color requirements must be met while maximizing the number of untapped sources. There are solvers for these type of problems, like the amazing jsLPSolver, which I used here.