Mana Base Guide: How Many Lands Does a Commander Deck Actually Need?

The honest range for most Commander decks is 36–38 lands plus ramp, adjusted by curve: a deck whose average spell costs two mana can shave a land; a deck built around six- and seven-mana payoffs should add one. The mistake is copying a number without the curve — count your lands against YOUR deck's mana values, not a streamer's.

The lands, from their actual text

Path of Ancestry is a common Land from Mystery Booster Commander Edition, mana cost — (lands have no mana cost). Its rules text reads: "This land enters tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)" It is legal in Legacy, Pauper, Commander. Reliquary Tower is a uncommon Land from Secrets of Strixhaven Commander, mana cost — (lands have no mana cost). Its rules text reads: "You have no maximum hand size. {T}: Add {C}." It is legal in Pioneer, Modern, Legacy, Commander. Myriad Landscape is a uncommon Land from Edge of Eternities Commander, mana cost — (lands have no mana cost). Its rules text reads: "This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle." It is legal in Legacy, Commander.

Putting it into practice

Build your mana base as a system, not a pile: count colored sources per color (a common target is 14+ sources for a color you need early), count total lands against your curve, and goldfish opening hands until the base proves it can cast your spells on schedule. MTGBrew's AI deck builder shows the color breakdown of any list you build, and the MTGBrew card database carries the exact text of every land in this guide.

Where to go next

Check the exact wording of every card mentioned here in the MTGBrew card database before you buy or slot anything — oracle text is the final word. Then brew the list in MTGBrew's AI deck builder, which respects your budget as a hard cap and explains how the deck's strength is measured against that budget.

One more consideration

Consistency is the least glamorous stat in Magic and the one that decides the most games. Whatever this article's subject, the practical test is the same: shuffle up, draw opening hands, and ask honestly how often the plan survives a mulligan, an answer from an opponent, and a slow start — all three in the same game. Decks that pass that test are the decks that win pods, and building them is exactly what MTGBrew's tools are for.