Ugin, the Spirit Dragon

+2: Ugin, the Spirit Dragon deals 3 damage to target creature or player. -X: Exile each permanent with converted mana cost X or less that's one or more colors. -10: You gain 7 life, draw seven cards, then put up to seven permanent cards from your hand onto the battlefield.

Trinisphere

As long as Trinisphere is untapped, each spell that would cost less than three mana to cast costs three mana to cast. (Additional mana in the cost may be paid with any color of mana or colorless mana. For example, a spell that would cost {1}{B} to cast costs {2}{B} to cast instead.)

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.)

Condescend

Counter target spell unless its controller pays {X}. Scry 2 (To scry 2, look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

Chalice of the Void

Chalice of the Void enters the battlefield with X charge counters on it. Whenever a player casts a spell with converted mana cost equal to the number of charge counters on Chalice of the Void, counter that spell.

Thirst for Knowledge

Draw three cards. Then discard two cards unless you discard an artifact card.

Remand

Counter target spell. If you do, return that spell card to its owner's hand. Draw a card.

Urza's Mine

{T}: Add one colorless mana to your mana pool. If you control Urza's Mine, Urza's Tower, and Urza's Power Plant, add two colorless mana to your mana pool instead of one.

Urza's Power Plant

{T}: Add one colorless mana to your mana pool. If you control Urza's Mine, Urza's Tower, and Urza's Power Plant, add two colorless mana to your mana pool instead of one.

Urza's Tower

{T}: Add one colorless mana to your mana pool. If you control Urza's Mine, Urza's Tower, and Urza's Power Plant, add three colorless mana to your mana pool instead of one.

Cyclonic Rift

Return target nonland permanent you don't control to its owner's hand. Overload {6}{U} (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")

Mindslaver

{4}, {T}, Sacrifice Mindslaver: You control target player during that player's next turn. (You see all cards that player could see and make all decisions for the player.)

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.

Academy Ruins

{T}: Add {1} to your mana pool. {1}{U}, {T}: Put target artifact card in your graveyard on top of your library.

Gemstone Caverns

If Gemstone Caverns is in your opening hand and you're not playing first, you may begin the game with Gemstone Caverns in play with a luck counter on it. If you do, remove a card in your hand from the game. {T}: Add {1} to your mana pool. If Gemstone Caverns has a luck counter on it, instead add one mana of any color to your mana pool.

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.

Repeal

Emrakul, the Promised End

Walking Ballista

Commit // Memory

Nimble Obstructionist

Supreme Will

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.

Blast Zone

Blast Zone enters the battlefield with a charge counter on it. {T}: Add {C}. {X}{X}, {T}: Put X charge counters on Blast Zone. {3}, {T}, Sacrifice Blast Zone: Destroy each nonland permanent with converted mana cost equal to the number of charge counters on Blast Zone.

Field of Ruin

{T}: Add {C}. {2}, {T}, Sacrifice Field of Ruin: Destroy target nonbasic land an opponent controls. Each player searches their library for a basic land card, puts it onto the battlefield, then shuffles their library.

Island

({T}: Add {U}.)