Duskworker

Whenever this creature becomes blocked, regenerate it.
{3}: This creature gets +1/+0 until end of turn.

Darksteel Brute

Indestructible (Damage and effects that say "destroy" don't destroy this artifact.)
{3}: This artifact becomes a 2/2 Beast artifact creature until end of turn.

Pyrite Spellbomb

{R}, Sacrifice this artifact: It deals 2 damage to any target.
{1}, Sacrifice this artifact: Draw a card.

Vulshok War Boar

When this creature enters, sacrifice it unless you sacrifice an artifact.

Great Furnace

Mountain

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Iron Myr

Gemini Engine

Whenever this creature attacks, create a colorless Construct artifact creature token named Twin that's attacking. Its power is equal to this creature's power and its toughness is equal to this creature's toughness. Sacrifice the token at end of combat.

Barbed Lightning

Choose one —
• Barbed Lightning deals 3 damage to target creature.
• Barbed Lightning deals 3 damage to target player or planeswalker.
Entwine {2} (Choose both if you pay the entwine cost.)

Krark-Clan Stoker

Rustmouth Ogre

Whenever this creature deals combat damage to a player, you may destroy target artifact that player controls.

Pulse of the Forge

Pulse of the Forge deals 4 damage to target player or planeswalker. Then if that player or that planeswalker's controller has more life than you, return Pulse of the Forge to its owner's hand.

Talon of Pain

Whenever a source you control other than this artifact deals damage to an opponent, put a charge counter on this artifact.
{X}, {T}, Remove X charge counters from this artifact: It deals X damage to any target.

Darksteel Citadel

Granite Shard

{3}, {T} or {R}, {T}: This artifact deals 1 damage to any target.

Detonate

Destroy target artifact with mana value X. It can't be regenerated. Detonate deals X damage to that artifact's controller.

Goblin Replica

{3}{R}, Sacrifice this creature: Destroy target artifact.

Oxidda Golem

Affinity for Mountains (This spell costs {1} less to cast for each Mountain you control.)
Haste

Electrostatic Bolt

Electrostatic Bolt deals 2 damage to target creature. If it's an artifact creature, Electrostatic Bolt deals 4 damage to it instead.

Steel Wall

Krark-Clan Grunt

Sacrifice an artifact: This creature gets +1/+0 and gains first strike until end of turn.

Grab the Reins

Choose one —
• Until end of turn, you gain control of target creature and it gains haste.
• Sacrifice a creature. Grab the Reins deals damage equal to that creature's power to any target.
Entwine {2}{R} (Choose both if you pay the entwine cost.)

Molten Rain

Destroy target land. If that land was nonbasic, Molten Rain deals 2 damage to the land's controller.