Commander 2021

Well of Lost Dreams

Well of Lost Dreams {4}

Artifact
Whenever you gain life, you may pay {X}, where X is less than or equal to the amount of life you gained. If you do, draw X cards.
Some say the knowledge lost during the Ritual of Rebuking is returned through the well's waters.
Ancient Den

Ancient Den

Artifact Land
{T}: Add {W}.
Taj-Nar, throne of Raksha Golden Cub, destined leader of the leonin prides.
Barren Moor

Barren Moor

Land
This land enters tapped.
{T}: Add {B}.
Cycling {B}
Battlefield Forge

Battlefield Forge

Land
{T}: Add {C}.
{T}: Add {R} or {W}. This land deals 1 damage to you.
Blighted Cataract

Blighted Cataract

Land
{T}: Add {C}.
{5}{U}, {T}, Sacrifice this land: Draw two cards.
Once, water ran here. Now only dust and ash fall from the clifftops.
Blighted Woodland

Blighted Woodland

Land
{T}: Add {C}.
{3}{G}, {T}, Sacrifice this land: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.
Bojuka Bog

Bojuka Bog

Land
This land enters tapped.
When this land enters, exile target player's graveyard.
{T}: Add {B}.
Boros Garrison

Boros Garrison

Land
This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {R}{W}.
Caves of Koilos

Caves of Koilos

Land
{T}: Add {C}.
{T}: Add {W} or {B}. This land deals 1 damage to you.
Command Tower

Command Tower

Land
{T}: Add one mana of any color in your commander's color identity.
"Approach my tower on bended knee or depart from it as ash upon the wind."
—Gadwick, the Wizened
Related card: Tower Winder
Darksteel Citadel

Darksteel Citadel

Artifact Land
Indestructible
{T}: Add {C}.
Structures built from darksteel yield to neither assault nor age.
Desert of the Fervent

Desert of the Fervent

Land - Desert
This land enters tapped.
{T}: Add {R}.
Cycling {1}{R}
Desert of the Mindful

Desert of the Mindful

Land - Desert
This land enters tapped.
{T}: Add {U}.
Cycling {1}{U}
Exotic Orchard

Exotic Orchard

Land
{T}: Add one mana of any color that a land an opponent controls could produce.
"It was a strange morning. When we awoke, we found our trees transformed. We didn't know whether to water them or polish them."
—Pulan, Bant orchardist
Forgotten Cave

Forgotten Cave

Land
This land enters tapped.
{T}: Add {R}.
Cycling {R}
Gingerbread Cabin

Gingerbread Cabin

Land - Forest
({T}: Add {G}.)
This land enters tapped unless you control three or more other Forests.
When this land enters untapped, create a Food token.
Related card: Boseiju Pathlighter
Golgari Rot Farm

Golgari Rot Farm

Land
This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {B}{G}.
Great Furnace

Great Furnace

Artifact Land
{T}: Add {R}.
Kuldotha, wellspring of molten metal, temple of the goblin horde.
High Market

High Market

Land
{T}: Add {C}.
{T}, Sacrifice a creature: You gain 1 life.
If it can't be had here, it can't be had on any world.
Izzet Boilerworks

Izzet Boilerworks

Land
This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {U}{R}.
Jungle Hollow

Jungle Hollow

Land
This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {B} or {G}.
Llanowar Reborn

Llanowar Reborn

Land
This land enters tapped.
{T}: Add {G}.
Graft 1
Llanowar Wastes

Llanowar Wastes

Land
{T}: Add {C}.
{T}: Add {B} or {G}. This land deals 1 damage to you.
Lonely Sandbar

Lonely Sandbar

Land
This land enters tapped.
{T}: Add {U}.
Cycling {U}
Lumbering Falls

Lumbering Falls

Land
This land enters tapped.
{T}: Add {G} or {U}.
{2}{G}{U}: This land becomes a 3/3 green and blue Elemental creature with hexproof until end of turn. It's still a land.