Dark Depths

Dark Depths comes into play with ten ice counters on it. {3}: Remove an ice counter from Dark Depths. When Dark Depths has no ice counters on it, sacrifice it. If you do, put an indestructible legendary 20/20 black Avatar creature token with flying named Marit Lage into play.

Thespian's Stage

{T}: Add {1} to your mana pool. {2}, {T}: Thespian's Stage becomes a copy of target land and gains this ability.

Surgical Extraction

({B/P} can be paid with either {B} or 2 life.) Choose target card in a graveyard other than a basic land card. Search its owner's graveyard, hand, and library for any number of cards with the same name as that card and exile them. Then that player shuffles his or her library.

Urborg, Tomb of Yawgmoth

Each land is a Swamp in addition to its other land types.

Cabal Therapy

Name a nonland card. Target player reveals his or her hand and discards all cards with that name. Flashback-Sacrifice a creature. (You may play this card from your graveyard for its flashback cost. Then remove it from the game.)

Gitaxian Probe

({U/P} can be paid with either {U} or 2 life.) Look at target player's hand. Draw a card.

Sylvan Library

You may draw two extra cards during your draw phase. If you do so, put two of the cards drawn this turn back on top of your library (in any order) or pay 4 life per card not replaced. Effects that prevent or redirect damage cannot be used to counter this loss of life.

Mishra's Factory

{T}: Add one colorless mana to your mana pool. {1}: Mishra's Factory becomes an Assembly Worker, a 2/2 artifact creature, until end of turn. Assembly Worker still counts as a land but cannot be tapped for mana the turn it comes into play. {T}: Target Assembly Worker gets +1/+1 until end of turn.

Abrupt Decay

Abrupt Decay can't be countered by spells or abilities. Destroy target nonland permanent with converted mana cost 3 or less.

Not of This World

Counter target spell or ability that targets a permanent you control. Not of This World costs {7} less to cast if it targets a spell or ability that targets a creature you control with power 7 or greater.

Pithing Needle

As Pithing Needle comes into play, name a card. Activated abilities of sources with the chosen name can't be played unless they're mana abilities.

Maze of Ith

{T}: Target attacking creature becomes untapped. This creature neither deals nor receives damage as a result of combat.

Thoughtseize

Target player reveals his or her hand. You choose a nonland card from it. That player discards that card. You lose 2 life.

Bayou

Counts as both swamp and forest and is affected by spells that affect either. Tap to add either {B} or {G} to your mana pool.

Crop Rotation

At the time you play Crop Rotation, sacrifice a land. Search your library for a land card and put that land into play. Shuffle your library afterwards.

Khalni Garden

Khalni Garden enters the battlefield tapped. When Khalni Garden enters the battlefield, put a 0/1 green Plant creature token onto the battlefield. {T}: Add {G} to your mana pool.

Sejiri Steppe

Sejiri Steppe enters the battlefield tapped. When Sejiri Steppe enters the battlefield, target creature you control gains protection from the color of your choice until end of turn. {T}: Add {W} to your mana pool.

Vampire Hexmage

First strike Sacrifice Vampire Hexmage: Remove all counters from target permanent.

Expedition Map

{2}, {T}, Sacrifice Expedition Map: Search your library for a land card, reveal it, and put it into your hand. Then shuffle your library.

Verdant Catacombs

Sylvan Scrying

Ghost Quarter

Blooming Marsh

Swamp

({T}: Add {B}.)

Forest

({T}: Add {G}.)