Leaden Myr

Nuisance Engine

{2}, {T}: Create a 0/1 colorless Pest artifact creature token.

Great Furnace

Pyrite Spellbomb

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

Dross Scorpion

Whenever this creature or another artifact creature dies, you may untap target artifact.

Vault of Whispers

Irradiate

Target creature gets -1/-1 until end of turn for each artifact you control.

Necrogen Spellbomb

{B}, Sacrifice this artifact: Target player discards a card.
{1}, Sacrifice this artifact: Draw a card.

Disciple of the Vault

Whenever an artifact is put into a graveyard from the battlefield, you may have target opponent lose 1 life.

Rust Elemental

Flying
At the beginning of your upkeep, sacrifice another artifact. If you can't, tap this creature and you lose 4 life.

Swamp

Pentavus

This creature enters with five +1/+1 counters on it.
{1}, Remove a +1/+1 counter from this creature: Create a 1/1 colorless Pentavite artifact creature token with flying.
{1}, Sacrifice a Pentavite: Put a +1/+1 counter on this creature.

Megatog

Sacrifice an artifact: This creature gets +3/+3 and gains trample until end of turn.

Iron Myr

Myr Retriever

When this creature dies, return another target artifact card from your graveyard to your hand.

Nim Replica

{2}{B}, Sacrifice this creature: Target creature gets -1/-1 until end of turn.

Mountain

Krark-Clan Grunt

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

Goblin Replica

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

Shrapnel Blast

As an additional cost to cast this spell, sacrifice an artifact.
Shrapnel Blast deals 5 damage to any target.

Skeleton Shard

{3}, {T} or {B}, {T}: Return target artifact creature card from your graveyard to your hand.