Time Sieve

{T}, Sacrifice five artifacts: Take an extra turn after this one.

Mishra's Bauble

{T}, Sacrifice Mishra's Bauble: Look at the top card of target player's library. Draw a card at the beginning of the next turn's upkeep.

Thopter Foundry

{1}, Sacrifice a nontoken artifact: Put a 1/1 blue Thopter artifact creature token with flying onto the battlefield. You gain 1 life.

Sword of the Meek

Equipped creature gets +1/+2. Equip {2} Whenever a 1/1 creature comes into play under your control, you may return Sword of the Meek from your graveyard to play, then attach it to that creature.

Witchbane Orb

When Witchbane Orb enters the battlefield, destroy all Curses attached to you. You have hexproof. (You can't be the target of spells or abilities your opponents control, including Aura spells.)

Welding Jar

Sacrifice Welding Jar: Regenerate target artifact.

Tezzeret, Agent of Bolas

+1: Look at the top five cards of your library. You may reveal an artifact card from among them and put it into your hand. Put the rest on the bottom of your library in any order. -1: Target artifact becomes a 5/5 artifact creature. -4: Target player loses X life and you gain X life, where X is twice the number of artifacts you control.

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.

Pentad Prism

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) Remove a charge counter from Pentad Prism: Add one mana of any color to your mana pool.

Serum Visions

Draw a card. Scry 2 (Look at the top two cards of your library. Put any number of them on the bottom of your library and the rest on top of it in any order.)

Damnation

Maelstrom Pulse

Destroy target nonland permanent and all other permanents with the same name as that permanent.

Abrupt Decay

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

Darkslick Shores

Darkslick Shores enters the battlefield tapped unless you control two or fewer other lands. {T}: Add {U} or {B} to your mana pool.

Mox Opal

Metalcraft — {T}: Add one mana of any color to your mana pool. Activate this ability only if you control three or more artifacts.

Relic of Progenitus

{T}: Target player removes a card in his or her graveyard from the game. {1}, Remove Relic of Progenitus from the game: Remove all graveyards from the game. Draw a card.

Ensnaring Bridge

Each creature with power greater than the number of cards in your hand cannot attack.

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.

Thoughtseize

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

Flooded Strand

Polluted Delta

Watery Grave

Collective Brutality

Inventors' Fair

Padeem, Consul of Innovation

Herald of Anguish

Whir of Invention

Breeding Pool

({T}: Add {G} or {U}.) As Breeding Pool enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Grafdigger's Cage

Creature cards in graveyards and libraries can't enter the battlefield. Players can't cast spells from graveyards or libraries.

Island

({T}: Add {U}.)

Swamp

({T}: Add {B}.)