At the beginning of your precombat main phase, add {B} for each charge counter on Altar of Shadows.
{7}, {T}: Destroy target creature. Then put a charge counter on Altar of Shadows.
{1}
Arcbound Worker
Artifact Creature - Construct
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.)
0 /
0
{1}
Arcbound Worker
Artifact Creature - Construct
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.)
0 /
0
{6}
Argivian Avenger
Artifact Creature - Shapeshifter
{1}: Until end of turn, Argivian Avenger gets -1/-1 and gains your choice of flying, vigilance, deathtouch, or haste.
5 /
5
{3}
Chief of the Foundry
Artifact Creature - Construct
Other artifact creatures you control get +1/+1.
2 /
3
{3}
Chief of the Foundry
Artifact Creature - Construct
Other artifact creatures you control get +1/+1.
2 /
3
{1}
Chronomaton
Artifact Creature - Golem
{1}, {T}: Put a +1/+1 counter on Chronomaton.
1 /
1
{3}
Coiled Tinviper
Artifact Creature - Snake
First strike
2 /
1
{3}
Coiled Tinviper
Artifact Creature - Snake
First strike
2 /
1
{5}
Creepy Doll
Artifact Creature - Construct
Indestructible
Whenever Creepy Doll deals combat damage to a creature, flip a coin. If you win the flip, destroy that creature.
1 /
1
{5}
Darksteel Juggernaut
Artifact Creature - Juggernaut
Indestructible
Darksteel Juggernaut's power and toughness are each equal to the number of artifacts you control.
Darksteel Juggernaut attacks each combat if able.
* /
*
{4}
Drill-Skimmer
Artifact Creature - Thopter
Flying
Drill-Skimmer has shroud as long as you control another artifact creature. (It can't be the target of spells or abilities.)
2 /
1
{3}
Foundry Inspector
Artifact Creature - Construct
Artifact spells you cast cost {1} less to cast.
3 /
2
{3}
Foundry Inspector
Artifact Creature - Construct
Artifact spells you cast cost {1} less to cast.
3 /
2
{4}
Frogmite
Artifact Creature - Frog
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
2 /
2
{4}
Frogmite
Artifact Creature - Frog
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
2 /
2
{1}
Gingerbrute
Artifact Creature - Food Golem
Haste
{1}: Gingerbrute can't be blocked this turn except by creatures with haste.
{2}, {T}, Sacrifice Gingerbrute: You gain 3 life.
1 /
1
{1}
Gingerbrute
Artifact Creature - Food Golem
Haste
{1}: Gingerbrute can't be blocked this turn except by creatures with haste.
{2}, {T}, Sacrifice Gingerbrute: You gain 3 life.
1 /
1
{6}
Gold-Forged Sentinel
Artifact Creature - Chimera
Flying
4 /
4
{6}
Hexavus
Artifact Creature - Construct
Flying
Hexavus enters the battlefield with six +1/+1 counters on it.
{1}, Remove a +1/+1 counter from Hexavus: Put a flying counter on another target creature.
{1}, Remove a counter from another creature you control: Put a +1/+1 counter on Hexavus.
0 /
0
{2}
Hovermyr
Artifact Creature - Myr
Flying, vigilance
1 /
2
{3}
Liberator, Urza's Battlethopter
Legendary Artifact Creature - Thopter
Flash
Flying
You may cast colorless spells and artifact spells as though they had flash.
Whenever you cast a spell, if the amount of mana spent to cast that spell is greater than Liberator, Urza's Battlethopter's power, put a +1/+1 counter on Liberator.
1 /
2
{4}
Lodestone Golem
Artifact Creature - Golem
Nonartifact spells cost {1} more to cast.
5 /
3
{0}
Memnite
Artifact Creature - Construct
1 /
1
{0}
Memnite
Artifact Creature - Construct
1 /
1
{0}
Mox Emerald
Artifact
{T}: Add {G}.
{0}
Mox Emerald
Artifact
{T}: Add {G}.
{0}
Mox Emerald
Artifact
{T}: Add {G}.
{0}
Mox Emerald
Artifact
{T}: Add {G}.
{0}
Mox Jet
Artifact
{T}: Add {B}.
{0}
Mox Jet
Artifact
{T}: Add {B}.
{0}
Mox Jet
Artifact
{T}: Add {B}.
{0}
Mox Jet
Artifact
{T}: Add {B}.
{0}
Mox Opal
Legendary Artifact
Metalcraft -- {T}: Add one mana of any color. Activate only if you control three or more artifacts.
{0}
Mox Pearl
Artifact
{T}: Add {W}.
{0}
Mox Pearl
Artifact
{T}: Add {W}.
{0}
Mox Pearl
Artifact
{T}: Add {W}.
{0}
Mox Pearl
Artifact
{T}: Add {W}.
{0}
Mox Ruby
Artifact
{T}: Add {R}.
{0}
Mox Ruby
Artifact
{T}: Add {R}.
{0}
Mox Ruby
Artifact
{T}: Add {R}.
{0}
Mox Ruby
Artifact
{T}: Add {R}.
{0}
Mox Sapphire
Artifact
{T}: Add {U}.
{0}
Mox Sapphire
Artifact
{T}: Add {U}.
{0}
Mox Sapphire
Artifact
{T}: Add {U}.
{0}
Mox Sapphire
Artifact
{T}: Add {U}.
{7}
Myr Enforcer
Artifact Creature - Myr
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
4 /
4
{8}
Platinum Emperion
Artifact Creature - Golem
Your life total can't change. (You can't gain or lose life. You can't pay any amount of life except 0.)
8 /
8
{5}
Predator, Flagship
Legendary Artifact
{2}: Target creature gains flying until end of turn.
{5}, {T}: Destroy target creature with flying.
{3}
Reconstructed Thopter
Artifact Creature - Thopter
Flying
Unearth {2} ({2}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)
2 /
1
{3}
Shimmer Myr
Artifact Creature - Myr
Flash
You may cast artifact spells as though they had flash.
2 /
2
{7}
Sojourner's Companion
Artifact Creature - Salamander
Affinity for artifacts
Artifact landcycling {2} ({2}, Discard this card: Search your library for an artifact land card, reveal it, put it into your hand, then shuffle.)
4 /
4
{6}
Steel Hellkite
Artifact Creature - Dragon
Flying
{2}: Steel Hellkite gets +1/+0 until end of turn.
{X}: Destroy each nonland permanent with mana value X whose controller was dealt combat damage by Steel Hellkite this turn. Activate only once each turn.
5 /
5
{2}
Steel Overseer
Artifact Creature - Construct
{T}: Put a +1/+1 counter on each artifact creature you control.
1 /
1
{2}
Steel Overseer
Artifact Creature - Construct
{T}: Put a +1/+1 counter on each artifact creature you control.
1 /
1
{2}
Steel Overseer
Artifact Creature - Construct
{T}: Put a +1/+1 counter on each artifact creature you control.
1 /
1
{3}
Sylvok Replica
Artifact Creature - Shaman
{G}, Sacrifice Sylvok Replica: Destroy target artifact or enchantment.
1 /
3
{3}
Sylvok Replica
Artifact Creature - Shaman
{G}, Sacrifice Sylvok Replica: Destroy target artifact or enchantment.
1 /
3
{3}
Weathered Sentinels
Artifact Creature - Wall
Defender, vigilance, reach, trample
Weathered Sentinels can attack players who attacked you during their last turn as though it didn't have defender.
Whenever Weathered Sentinels attacks, it gets +3/+3 and gains indestructible until end of turn.
2 /
5
{6}
Wurmcoil Engine
Artifact Creature - Phyrexian Wurm
Deathtouch, lifelink
When Wurmcoil Engine dies, create a 3/3 colorless Phyrexian Wurm artifact creature token with deathtouch and a 3/3 colorless Phyrexian Wurm artifact creature token with lifelink.