Darksteel

Essence Drain deals 3 damage to any target and you gain 3 life.

{T}: Add {C}. {1}: Blinkmoth Nexus becomes a 1/1 Blinkmoth artifact creature with flying until end of turn. It's still a land. {1}, {T}: Target Bli...

Whenever a player casts a black spell, you may gain 1 life.

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

{T}: Put a charge counter on target artifact. Sacrifice Coretapper: Put two charge counters on target artifact.

Modular 1 (This creature enters the battlefield with a +1/+1 counter on it. When it dies, you may put its +1/+1 counters on target artifact creature.)

{X}, {T}: Target opponent reveals cards from the top of their library until an artifact card or X cards are revealed, whichever comes first. If an ...

Create a 3/3 green Beast creature token. Then if an opponent controls more creatures than you, return Pulse of the Tangle to its owner's hand.

As long as Thunderstaff is untapped, if a creature would deal combat damage to you, prevent 1 of that damage. {2}, {T}: Attacking creatures get +1/...

{1}{G}, Sacrifice Viridian Zealot: Destroy target artifact or enchantment.

Whenever a player casts a red spell, you may gain 1 life.

Change the target of target spell with a single target.

{X}, {T}: Tap X target noncreature artifacts. {X}, {T}: Untap X target noncreature artifacts.

Affinity for Islands (This spell costs {1} less to cast for each Island you control.) Flying

Destroy target artifact. It can't be regenerated.

{T}, Sacrifice an Island: Create a 2/2 blue Elemental creature token with flying. {T}, Sacrifice a Mountain: Create a 3/3 red Elemental creature to...

{X}, {T}: Target opponent reveals cards from the top of their library until an artifact card or X cards are revealed, whichever comes first. If an ...

You gain 4 life. Then if an opponent has more life than you, return Pulse of the Fields to its owner's hand.

Karstoderm enters the battlefield with five +1/+1 counters on it. Whenever an artifact enters the battlefield, remove a +1/+1 counter from Karstoderm.

When Vulshok War Boar enters the battlefield, sacrifice it unless you sacrifice an artifact.

Protection from artifacts

Put two +1/+1 counters on target creature and two +1/+1 counters on another target creature.

Put two target artifacts on top of their owners' libraries.

Tap all artifacts.