Through the Breach

Put a creature card from your hand into play. That creature has haste. Sacrifice that creature at end of turn. Splice onto Arcane {2}{R}{R} (As you play an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Chaos Warp

The owner of target permanent shuffles it into his or her library, then reveals the top card of his or her library. If it's a permanent card, he or she puts it onto the battlefield.

City of Traitors

If you play any land, sacrifice City of Traitors. {T}: Add two colorless mana to your mana pool.

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.)

Sandstone Needle

Sandstone Needle comes into play tapped with two depletion counters on it. {T}, Remove a depletion counter from Sandstone Needle: Add two red mana to your mana pool. If there are no depletion counters on Sandstone Needle, sacrifice it.

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.

Seething Song

Add {R}{R}{R}{R}{R} to your mana pool.

Simian Spirit Guide

Remove Simian Spirit Guide in your hand from the game: Add {R} to your mana pool.

Griselbrand

Flying, lifelink Pay 7 life: Draw seven cards.

Worldspine Wurm

Trample When Worldspine Wurm dies, put three 5/5 green Wurm creature tokens with trample onto the battlefield. When Worldspine Wurm is put into a graveyard from anywhere, shuffle it into its owner's library.

Emrakul, the Aeons Torn

Emrakul, the Aeons Torn can't be countered. When you cast Emrakul, take an extra turn after this one. Flying, protection from colored spells, annihilator 6 When Emrakul is put into a graveyard from anywhere, its owner shuffles his or her graveyard into his or her library.

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.

Faerie Macabre

Flying Discard Faerie Macabre: Remove up to two target cards in graveyards from the game.

Crystal Vein

{T}: Add one colorless mana to your mana pool. {T}, Sacrifice Crystal Vein: Add two colorless mana to your mana pool.

Lotus Petal

Sacrifice Lotus Petal: Add one mana of any color to your mana pool. Play this ability as a mana source.

Blood Moon

All non-basic lands are now basic mountains.

Ashen Rider

Flying When Ashen Rider enters the battlefield or dies, exile target permanent.

Pyromancy

{3}, Discard a card at random: Pyromancy deals to target creature or player an amount of damage equal to the total casting cost of the discarded card.

Sneak Attack

{R}: Choose a creature card from your hand and put that creature into play. The creature is unaffected by summoning sickness. At end of turn, sacrifice the creature.

Inferno Titan

Kozilek's Return

Ancient Tomb

Abrade

Sorcerous Spyglass

As Sorcerous Spyglass enters the battlefield, look at an opponent's hand, then choose any card name. Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.

Mountain

({T}: Add {R}.)