Cavern of Souls

As Cavern of Souls enters the battlefield, choose a creature type. {T}: Add {1} to your mana pool. {T}: Add one mana of any color to your mana pool. Spend this mana only to cast a creature spell of the chosen type, and that spell can't be countered.

Slayers' Stronghold

{T}: Add {1} to your mana pool. {R}{W}, {T}: Target creature gets +2/+0 and gains vigilance and haste until end of turn.

Azusa, Lost but Seeking

You may play two additional lands on each of your turns.

Mycosynth Lattice

All permanents are artifacts in addition to their other types. All cards that aren't in play, spells, and permanents are colorless. Players may spend mana as though it were mana of any color.

Tolaria West

Tolaria West comes into play tapped. {T}: Add {U} to your mana pool. Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with converted mana cost 0, reveal it, and put it into your hand. Then shuffle your library. Play only as a sorcery.)

Snow-Covered Forest

{T}: Add {G} to your mana pool.

Obstinate Baloth

When Obstinate Baloth enters the battlefield, you gain 4 life. If a spell or ability an opponent controls causes you to discard Obstinate Baloth, put it onto the battlefield instead of putting it into your graveyard.

Hornet Queen

Flying Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) When Hornet Queen enters the battlefield, put four 1/1 green Insect creature tokens with flying and deathtouch onto the battlefield.

Reclamation Sage

When Reclamation Sage enters the battlefield, you may destroy target artifact or enchantment.

Pact of Negation

Counter target spell. At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game.

Summoner's Pact

Search your library for a green creature card, reveal it, and put it into your hand. Then shuffle your library. At the beginning of your next upkeep, pay {2}{G}{G}. If you don't, you lose the game.

Engineered Explosives

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) {2}, Sacrifice Engineered Explosives: Destroy each nonland permanent with converted mana cost equal to the number of charge counters on Engineered Explosives.

Primeval Titan

Trample Whenever Primeval Titan enters the battlefield or attacks, you may search your library for up to two land cards, put them onto the battlefield tapped, then shuffle your library.

Selesnya Sanctuary

Selesnya Sanctuary comes into play tapped. When Selesnya Sanctuary comes into play, return a land you control to its owner's hand. {T}: Add {G}{W} to your mana pool.

Sunhome, Fortress of the Legion

{T}: Add {1} to your mana pool. {2}{R}{W}, {T}: Target creature gains double strike until end of turn.

Ancient Stirrings

Look at the top five cards of your library. You may reveal a colorless card from among them and put it into your hand. Then put the rest on the bottom of your library in any order. (Cards with no colored mana in their mana costs are colorless. Lands are also colorless.)

Sakura-Tribe Scout

{T}: You may put a land card from your hand into play.

Wurmcoil Engine

Deathtouch, lifelink When Wurmcoil Engine is put into a graveyard from the battlefield, put a 3/3 colorless Wurm artifact creature token with deathtouch and a 3/3 colorless Wurm artifact creature token with lifelink onto the battlefield.

Crucible of Worlds

You may play land cards from your graveyard.

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.

Tormod's Crypt

{T}, Sacrifice Tormod's Crypt: Remove target player's graveyard from the game.

Vesuva

As Vesuva comes into play, you may choose a land in play. If you do, Vesuva comes into play tapped as a copy of the chosen land.

Path to Exile

Exile target creature. Its controller may search his or her library for a basic land card, put that card onto the battlefield tapped, then shuffle his or her library.

Gemstone Mine

When Gemstone Mine comes into play, put three mining counters on it. {T}, Remove a mining counter from Gemstone Mine: Add one mana of any color to your mana pool. If there are no mining counters on Gemstone Mine, bury it.

Amulet of Vigor

Whenever a permanent enters the battlefield tapped and under your control, untap it.

Bojuka Bog

Bojuka Bog enters the battlefield tapped. When Bojuka Bog enters the battlefield, exile all cards from target player's graveyard. {T}: Add {B} to your mana pool.

Explore

You may play an additional land this turn. Draw a card.

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.

Kabira Crossroads

Kabira Crossroads enters the battlefield tapped. When Kabira Crossroads enters the battlefield, you gain 2 life. {T}: Add {W} to your mana pool.

Boros Garrison

Ghost Quarter

Simic Growth Chamber

Walking Ballista

Arboreal Grazer

Reach When Arboreal Grazer enters the battlefield, you may put a land card from your hand onto the battlefield tapped.

Forest

({T}: Add {G}.)

Karn, the Great Creator

Activated abilities of artifacts your opponents control can't be activated. +1: Until your next turn, up to one target noncreature artifact becomes an artifact creature with power and toughness each equal to its converted mana cost. −2: You may choose an artifact card you own from outside the game or in exile, reveal that card, and put it into your hand.