Krark-Clan Ironworks

Sacrifice an artifact: Add {2} to your mana pool.

Hangarback Walker

Hangarback Walker enters the battlefield with X +1/+1 counters on it. When Hangarback Walker dies, put a 1/1 colorless Thopter artifact creature token with flying onto the battlefield for each +1/+1 counter on Hangarback Walker.{1}, {T}: Put a +1/+1 counter on Hangarback Walker.

Chromatic Sphere

{1}, {T}, Sacrifice Chromatic Sphere: Add one mana of any color to your mana pool. Draw a card.

Ichor Wellspring

When Ichor Wellspring enters the battlefield or is put into a graveyard from the battlefield, draw a card.

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.

Myr Retriever

When Myr Retriever dies, return another target artifact card from your graveyard to your hand.

Darksteel Citadel

Indestructible (Effects that say "destroy" don't destroy this land.) {T}: Add {1} to your mana pool.

Thoughtcast

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Draw two cards.

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.

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.)

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.

Academy Ruins

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

Chromatic Star

{1}, {T}, Sacrifice Chromatic Star: Add one mana of any color to your mana pool. When Chromatic Star is put into a graveyard from play, draw a card.

Everflowing Chalice

Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.) Everflowing Chalice enters the battlefield with a charge counter on it for each time it was kicked. {T}: Add {1} to your mana pool for each charge counter on Everflowing Chalice.

Sanctum of Ugin

Mind Stone

Thought-Knot Seer

Terrarion

Aether Hub

Inventors' Fair

Scrap Trawler

Spire of Industry

Forest

({T}: Add {G}.)