This land enters tapped.

, : Tap target creature you control and target creature of an opponent's choice they control. Those creatures fight each other.

This land enters tapped unless you control a Mountain.
: Add .
, , Exert this land: Add . If that mana is spent on a creature spell, it gains haste until end of turn.

This land enters tapped unless you control a legendary green creature.
: Add .
, : Create a 2/2 green Bear creature token, then mill three cards. Activate only as a sorcery.
(Melds with Titania, Voice of Gaea.)

This land enters tapped.
When this land enters, return a land you control to its owner's hand. If another Desert was returned this way, surveil 1.
: Add .

, Pay 1 life, Sacrifice this land: Search your library for a Mountain or Plains card, put it onto the battlefield, then shuffle.

This land enters tapped.
When this land enters, you gain 1 life.
: Add or .

: Add .
Basic landcycling

Skemfar Elderhall enters tapped.
: Add .
, , Sacrifice Skemfar Elderhall: Up to one target creature you don't control gets -2/-2 until end of turn. Create two 1/1 green Elf Warrior creature tokens. Activate only as a sorcery.

As Thran Portal enters, choose a basic land type.
Thran Portal is the chosen type in addition to its other types.
Mana abilities of Thran Portal cost an additional 1 life to activate.

(Transforms from Journey to Eternity.)
: Add one mana of any color.
, : Return target creature card from your graveyard to the battlefield.

As this land enters, you may reveal a Goblin card from your hand. If you don't, this land enters tapped.
: Add or .

This land enters tapped.
When this land enters, you gain 1 life.
: Add or .

: Add .
: Add one mana of any color. Spend this mana only to cast a Hero spell or to activate an ability of a Hero source.
, : Look at the top three cards of your library. You may reveal a Hero card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Start your engines!
: Add .
Max speed — , , Discard a card: Draw a card.

This land enters tapped.
: Add .
, , Sacrifice this land: Search your library for an Aura card and/or an Equipment card, reveal them, put them into your hand, then shuffle.

: Add .
, : Add .
, : Add or .

(Transforms from Search for Azcanta.)
: Add .
, : Look at the top four cards of your library. You may reveal a noncreature, nonland card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
: Add .

This land enters tapped.
: Add or .

This land enters tapped unless you control a basic land.
: Add .
, : Earthbend 2. Activate only as a sorcery.

This land enters tapped.
, Sacrifice this land: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

This land enters tapped.
: Add .

This land enters tapped.
: Add or .
, : Transform this land. This ability costs less to activate for each other Town you control.

: Add .
, : Add X mana of any one color, where X is the number of other Gates you control.

If this land would enter, sacrifice an untapped Mountain instead. If you do, put this land onto the battlefield. If you don't, put it into its owner's graveyard.
: Add .
, : This land deals 1 damage to target attacking creature.

This land enters tapped.
: Add or .
, : Investigate.

: Add .
, , Sacrifice this land: Search your library for a basic Forest, Plains, or Island card, put it onto the battlefield tapped, then shuffle.

Barad-dûr enters tapped unless you control a legendary creature.
: Add .
, : Amass Orcs X. Activate only if a creature died this turn.