Command Tower

Opal Palace

Land

: Add .
, : Add one mana of any color in your commander's color identity. If you spend this mana to cast your commander, it enters with a number of additional +1/+1 counters on it equal to the number of times it's been cast from the command zone this game.

Path of Ancestry

Land

Path of Ancestry enters tapped.
: 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.)

Command Tower // Command Tower

: Add one mana of any color in your commander's color identity.

Command Tower

: Add one mana of any color in your commander's color identity.

Plaza of Heroes

Land

: Add .
: Add one mana of any color. Spend this mana only to cast a legendary spell.
: Add one mana of any color among legendary permanents you control.
, , Exile Plaza of Heroes: Target legendary creature gains hexproof and indestructible until end of turn.

Study Hall

Land

: Add .
, : Add one mana of any color. When you spend this mana to cast your commander, scry X, where X is the number of times it's been cast from the command zone this game.

Corrupted Crossroads

Land

: Add . ( represents colorless mana.)
, Pay 1 life: Add one mana of any color. Spend this mana only to cast a spell with devoid.

Hall of Tagsin

Land

: Add .
, : Add one mana of any color.
, : Create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

Haven of the Spirit Dragon

Land

: Add .
: Add one mana of any color. Spend this mana only to cast a Dragon creature spell.
, , Sacrifice Haven of the Spirit Dragon: Return target Dragon creature card or Ugin planeswalker card from your graveyard to your hand.

Primal Beyond

Land

As Primal Beyond enters, you may reveal an Elemental card from your hand. If you don't, Primal Beyond enters tapped.
: Add .
: Add one mana of any color. Spend this mana only to cast an Elemental spell or activate an ability of an Elemental.

The World Tree

Land

The World Tree enters tapped.
: Add .
As long as you control six or more lands, lands you control have ": Add one mana of any color."
, , Sacrifice The World Tree: Search your library for any number of God cards, put them onto the battlefield, then shuffle.

Cavern of Souls

Land

As Cavern of Souls enters, choose a creature type.
: Add .
: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

Sliver Hive

Land

: Add .
: Add one mana of any color. Spend this mana only to cast a Sliver spell.
, : Create a 1/1 colorless Sliver creature token. Activate only if you control a Sliver.

Ally Encampment

Land

: Add .
: Add one mana of any color. Spend this mana only to cast an Ally spell.
, , Sacrifice Ally Encampment: Return target Ally you control to its owner's hand.

Holdout Settlement

Land

: Add . ( represents colorless mana.)
, Tap an untapped creature you control: Add one mana of any color.

Unclaimed Territory

Land

As Unclaimed Territory enters, choose a creature type.
: Add .
: Add one mana of any color. Spend this mana only to cast a creature spell of the chosen type.

Secret Base

Land

: Add .
: Add one mana of any color. Spend this mana only to cast a spell that shares a watermark with Secret Base.

Guildmages' Forum

Land

: Add .
, : Add one mana of any color. If that mana is spent on a multicolored creature spell, that creature enters with an additional +1/+1 counter on it.

Underdome

Land

: Add .
: Add one mana of any color. Spend this mana only to pay Un-costs.