Every land, fully organized

Sacrifice the land, search your library for a land card matching its listed types, and put it onto the battlefield. Instant-speed, deck-thinning, and a free enabler for landfall, graveyard, and shuffle-trigger synergies. Most cost 1 life; a few don't.

The ten original ABUR dual lands — two basic land types, no drawback, always untapped. Reserved List cards and the most expensive lands in the game.

Enter the battlefield untapped if you pay 2 life; otherwise enter tapped. Carry two basic land types, so they're fetchable. The backbone of most two-color manabases.

Enter untapped only while you control two or fewer other lands. Excellent in the opening turns, a liability from the midgame on — build your curve around them accordingly.

Always enter untapped. Tap for colorless for free, or take 1 damage to tap for a colored mana. Two basic land types. A reliable, if lifetotal-taxing, two-color fixer.

Enter untapped only if you control a basic land of one of their two types. Strong once your manabase is established, clunky as an opener without basics already down.

Enter untapped. Tap for colorless alone, or tap plus one mana of either color to filter into two mana of your choice — useful for turning generic mana into precise colored pips.

Enter tapped, scry 1 when they do. The Theros "Temple" cycle and its reprint waves — a smoothing effect that trades tempo for consistency.

Enter tapped, you gain 1 life. Covers the Refuge, Bond, and Tranquil Cove-style cycles — the most common budget fixing in Commander precons.

Three-color lands that enter tapped, usually carry a basic land type (so they're fetchable), and often have cycling. A staple of any 3+ color Commander manabase.

Enter untapped only if you control two or more basic lands. The inverse of a fast land — weak early, reliable once your basics are down.

Enter tapped and produce two colors, but can be cycled for a card when you're flooded or don't need the fixing — flexibility a normal dual land doesn't offer.

Enter tapped and return a land you control to hand. Mana-neutral the turn you play them, mana-positive the turn after — strong in ramp-heavy Commander decks.

Tap for colored mana like a normal land, or sacrifice and draw a card when they've outlived their usefulness. Always enter untapped — no drawback until you choose to cash them in.

Enter tapped unless you control two or more other lands — the inverse of a fast land, punishing them as an early play but free from the midgame on.

Enter tapped. Tap to add a charge counter instead of mana, or remove any number of counters to add that much mana of one color at once — a burst-mana engine for big turns.

Lands that can animate into creatures, usually for a mana cost. Dodge sorcery-speed removal and board wipes, making them premium late-game win conditions.

The modern "Restless" man-land sub-cycle — enter tapped, then animate into a creature with an activated ability once they're online. A tempo-for-power trade versus older man-lands.

The Ravnica Guildgate cycles — always enter tapped, always produce exactly two colors, and always available for pennies. The floor of two-color fixing.

Modal double-faced lands — choose which of two single-colored front faces to play. Always enter untapped and never cost you tempo, at the price of only fixing one color at a time.

Sacrifice to search for any basic land and put it onto the battlefield tapped. Colorless to cast, fixes to any color you need — the budget, symmetrical cousin of a true fetch land.

Nonbasic snow lands — functionally identical to their non-snow counterparts, but count for Snow-matters synergies like Extraplanar Lens, Scrying Sheets, and Skred.

Enter tapped by default, but reveal a qualifying card from hand as they enter to have them come in untapped instead — including the "Verge" cycle from Murders at Karlov Manor.

Enter tapped, surveil 1 when they do — trading a turn of tempo for graveyard/card-selection value, in the same design space as Scry Lands.

Enter tapped and tap for colorless for free or a colored mana at the cost of 1 damage, while also granting a relevant creature type a minor combat ability.

Enter untapped if you have two or more opponents — which in Commander is essentially always. Budget-friendly untapped duals designed specifically for multiplayer.

Tap for either of two colors, but enter untapped only if you control a land of the first color's basic type. Ordered pairs — great in decks weighted toward the primary color.

Modal double-faced cards with a land on one face and a spell (or second land) on the other. They count as spells in hand and lands when you need them — the closest thing to a free land slot.

Lands that are also artifacts — free enablers for affinity, metalcraft, and every artifacts-matter payoff. The original Mirrodin cycle is banned in some formats but Commander-legal.

Rainbow fixing from Command Tower to City of Brass — every nonbasic land that taps for a mana of any color, with drawbacks ranging from none at all to damage, taxes, or tempo.

Enter tapped with two charge counters; tap for one color freely or remove a counter for any color. Patient five-color fixing on a budget.

The foundation: Plains, Island, Swamp, Mountain, Forest, Wastes, and their snow-covered versions. Immune to nonbasic hate, fetchable, and free — most manabase problems are solved by adding more of these.