(Transforms from Aclazotz, Deepest Betrayal.)
: Add .
, : Transform this land. Activate only if a player has one or fewer cards in hand and only as a sorcery.

As this land enters, you may reveal a Dragon card from your hand. This land enters tapped unless you revealed a Dragon card this way or you control a Dragon.
As this land enters, choose a color.
: Add one mana of the chosen color.

: Add . Activate only if you control five or more lands.

This land enters tapped.
When this land enters, scry 1.
: Add or .

Ascend
: Add , , or . If you don't have the city's blessing, you lose 1 life.

This land enters with a charge counter on it.
: Add .
, Remove a charge counter from this land: Add one mana of any color.

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

: Add .
, : You may put a basic land card from your hand onto the battlefield tapped.

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

: Add .
: Add or . This land doesn't untap during your next untap step.

This land enters tapped.
, : Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Return this land to its owner's hand at the beginning of the next cleanup step.

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

: Add .
, : Look at the top card of your library. If it's an instant or sorcery card, you may reveal it and put it into your hand. If you don't put the card into your hand, you may put it into your graveyard. Activate only if you have exactly zero or seven cards in hand.

: Add one mana of any color that appears on your top. (A top is an outerwear garment worn on the upper body.)

As The Black Gate enters, you may pay 3 life. If you don't, it enters tapped.
: Add .
, : Choose a player with the most life or tied for most life. Target creature can't be blocked by creatures that player controls this turn.

(Transforms from Matzalantli.)
Fathomless descent — : Add X mana of any one color, where X is the number of permanent cards in your graveyard.

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

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

: Add .
, : Flip a coin. If you win the flip, create a Treasure token.
, , Sacrifice two artifacts: Draw a card.

: Add .
, : Create a tapped Vibranium token.
, : Draw a card.

When The Grey Havens enters, scry 1.
: Add .
: Add one mana of any color among legendary creature cards in your graveyard.

: Add .
, : Exile the bottom card of target opponent's library.
Whenever one or more cards an opponent owns are put into exile, put a release counter on The Heron Moon. Then if it has thirteen or more release counters on it, sacrifice it and create a copy of Emrakul, the Promised End. Cast it without paying its mana cost.

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

This land enters tapped unless you control an Equipment.
, : Create a 2/2 red Dwarf creature token. This ability costs less to activate for each Equipment you control. Activate only as a sorcery.

This land enters with two oil counters on it.
: Add .
, Remove an oil counter from this land: Put an oil counter on target artifact or creature you control. Activate only as a sorcery.

: Add .
, : Add one mana of any color.
, : This land becomes a copy of target nontoken artifact you control with mana value X.

As this land enters, draft a card from The Mystical Archive's spellbook and exile it face down.
: Add .
, : Add two mana in any combination of colors. Spend this mana only to cast spells that aren't from your starting deck.
, : Put a card exiled with this land into its owner's hand.

The Mystical Archive's spellbook includes the following cards:
• Abrade
• Ad Nauseam
• Armageddon
• Berserk
• Big Score
• Bulk Up
• Crackle with Power
• Deduce
• Disdainful Stroke
• Empty the Warrens
• Force of Will
• Giant Growth
• Hop to It
• Knockout Maneuver
• Pick Your Poison
• Pongify
• Prismatic Ending
• Reprieve
• Requisition Raid
• Shamanic Revelation
• Sheoldred's Edict
• Smallpox
• Stargaze
• Stock Up
• Zombify

: Add .
, Say the secret word: Add one mana of any color. Scry 1. you gain 1 life.

: Add .
: Add one mana of any color. Spend this mana only to cast Phyrexian creature spells.
Corrupted — : Target 1/1 creature gets +2/+1 until end of turn. Activate only if an opponent has three or more poison counters.

The Shire enters tapped unless you control a legendary creature.
: Add .
, , Tap an untapped creature you control: Create a Food token.