As this land enters, you may pay 3 life. If you don't, it enters tapped.
: Add .

: Add .
, Pay 1 life: Add .
, , Sacrifice a Desert: Creatures you control get +1/+1 until end of turn. Activate only as a sorcery.

Hideaway 4
This land enters tapped.
: Add .
, : You may play the exiled card without paying its mana cost if a library has twenty or fewer cards in it.

This land enters tapped.
Cycling

If this land would enter, instead sacrifice each other permanent named Sheltered Valley you control, then put this land onto the battlefield.
At the beginning of your upkeep, if you control three or fewer lands, you gain 1 life.
: Add .

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

This land enters tapped unless you control a Forest.
: Add .
Delirium — : This land becomes a copy of target permanent card in your graveyard until end of turn. Activate only if there are four or more card types among cards in your graveyard.

This land enters tapped.
As this land enters, choose a color.
: Add one mana of the chosen color.

: Add .
, : Add one mana of any color.

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

: Add .
, : Target legendary creature gains first strike until end of turn.

This land enters tapped unless you control two or more other lands.
: Add or .

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

: Add .
, : Shivan Gorge deals 1 damage to each opponent.

This land enters tapped.
: Add or .

: Add .
: Add or . This land deals 1 damage to you.

: Add .
, : Target legendary creature gains fear until end of turn.

: Add .
: Add . Spend this mana only to cast colorless spells. Activate only if you control seven or more lands.

, Pay 1 life: Add or .
, , Sacrifice this land: Draw a card.

This land enters tapped.
: Add .

This land enters tapped.
: Add or .
, : Scry 1.

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.
: Add or .
, : Surveil 1.

: Add .
, : Target creature gets +1/+1 and gains trample until end of turn.

This land enters tapped.
: Add .
, , Sacrifice this land: 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.

This land enters tapped.
: Add or .
, , Sacrifice this land: Draw a card.

This land enters tapped.
: Add .

, : Add .

: Add .
, : Target creature becomes prepared. (Only creatures with prepare spells can become prepared.)