Other artifact creatures you control have haste.

Whenever one or more artifact creatures you control attack, Alibou, Ancient Witness deals X damage to any target and you scry X, where X is the number of tapped artifacts you control.

Creatures you control have hexproof. (They can't be the targets of spells or abilities your opponents control.)

{1}{G}: Regenerate target creature.

Choose two --

• Destroy all artifacts.

• Destroy all enchantments.

• Destroy all creatures with mana value 3 or less.

• Destroy all creatures with mana value 4 or greater.

Flying, vigilance, indestructible

Other permanents you control have indestructible.

Trample, infect, indestructible

If Blightsteel Colossus would be put into a graveyard from anywhere, reveal Blightsteel Colossus and shuffle it into its owner's library instead.

Creatures you control have vigilance.

Each creature you control can block an additional creature each combat.

Creature tokens you control have haste.

At the beginning of combat on your turn, create a 2/1 blue Phyrexian Myr artifact creature token. Then you may choose a token you control. If you do, each other token you control becomes a copy of that token.

Tap two untapped artifacts you control: Untap target artifact.

Defender

{T}: Creatures you control gain haste until end of turn.

Changeling (This card is every creature type.)

Exile target creature. Its controller creates a 1/1 colorless Shapeshifter creature token with changeling.

Indestructible

Once each turn, you may pay {0} rather than pay the mana cost for a colorless spell that you cast from your hand.

Tap target creature.

Metalcraft -- If you control three or more artifacts, exile that creature.

Choose a creature type. Draw a card for each permanent you control of that type.

Untap all nonland permanents you control.

As Etchings of the Chosen enters the battlefield, choose a creature type.

Creatures you control of the chosen type get +1/+1.

{1}, Sacrifice a creature of the chosen type: Target creature you control gains indestructible until end of turn.

{T}: Add one mana of any color that a land an opponent controls could produce.

Whenever a nontoken creature enters the battlefield, if Genesis Chamber is untapped, that creature's controller creates a 1/1 colorless Myr artifact creature token.

Whenever a nontoken creature enters the battlefield under your control, if it doesn't have the same name as another creature you control or a creature card in your graveyard, draw a card.

As Herald's Horn enters the battlefield, choose a creature type.

Creature spells you cast of the chosen type cost {1} less to cast.

At the beginning of your upkeep, look at the top card of your library. If it's a creature card of the chosen type, you may reveal it and put it into your hand.

Destroy all creatures you don't control and all planeswalkers you don't control.

Flying

Historic spells you cast cost {1} less to cast. (Artifacts, legendaries, and Sagas are historic.)

Whenever you cast a historic spell, draw a card. (Artifacts, legendaries, and Sagas are historic.)

Karn, Legacy Reforged's power and toughness are each equal to the greatest mana value among artifacts you control.

At the beginning of your upkeep, add {C} for each artifact you control. This mana can't be spent to cast nonartifact spells. Until end of turn, you don't lose this mana as steps and phases end.

Choose a creature type. For each creature you control of the chosen type, create a token that's a copy of that creature. Those tokens gain haste. Exile them at the beginning of the next end step.

Whenever an opponent casts a spell, reveal the top card of your library. If it's a creature card, put it onto the battlefield. Otherwise, you may put that card on the bottom of your library.

Changeling (This card is every creature type.)

When Masked Vandal enters the battlefield, you may exile a creature card from your graveyard. If you do, exile target artifact or enchantment an opponent controls.

Whenever another creature with power 2 or less enters the battlefield under your control, you may pay {1}. If you do, draw a card.

Creatures you control get +1/+1.

Whenever you tap a land for mana, add one mana of any type that land produced.

As Mirrodin Besieged enters the battlefield, choose Mirran or Phyrexian.

• Mirran -- Whenever you cast an artifact spell, create a 1/1 colorless Myr artifact creature token.

• Phyrexian -- At the beginning of your end step, draw a card, then discard a card. Then if there are fifteen or more artifact cards in your graveyard, target opponent loses the game.

Changeling (This card is every creature type.)

{X}: Until end of turn, creatures you control have base power and toughness X/X and gain all creature types.

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)

{T}, Pay 2 life: Add one mana of any color.

When Myr Custodian enters the battlefield, scry 2. Then each opponent may scry 1. (To scry X, that player looks at the top X cards of their library, then put any number of them on the bottom and the rest on top in any order.)

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

{3}, {T}: Create a token that's a copy of Myr Propagator.

When Myr Sire dies, create a 1/1 colorless Phyrexian Myr artifact creature token.

Spend only mana produced by creatures to cast this spell.

Imprint -- {T}: Exile target artifact card from a graveyard.

Myr Welder has all activated abilities of all cards exiled with it.

Whenever you cast an artifact spell, you may pay {1}. If you do, create a 1/1 colorless Myr artifact creature token.

Vigilance

If one or more creature tokens would be created under your control, three times that many of those tokens are created instead.

When Ojer Taq dies, return it to the battlefield tapped and transformed under its owner's control.

(Transforms from Ojer Taq, Deepest Foundation.)

{T}: Add {W}.

{2}{W}, {T}: Transform Temple of Civilization. Activate only if you attacked with three or more creatures this turn and only as a sorcery.

Until end of turn, creatures you control gain trample and get +X/+X, where X is the greatest power among creatures you control.

Return any number of target nonland, nontoken permanents you control to their owners' hands. Draw a card for each card returned to your hand this way.

Creatures you control have trample. (A creature with trample can deal excess combat damage to the player or planeswalker it's attacking.)

When Rishkar, Peema Renegade enters the battlefield, put a +1/+1 counter on each of up to two target creatures.

Each creature you control with a counter on it has "{T}: Add {G}."

Alliance -- Whenever another creature enters the battlefield under your control, scry 1. If this is the second time this ability has resolved this turn, draw a card instead.

Destroy target nonland permanent. Its controller creates a 1/1 white Human creature token.

Whenever a creature with power equal to its toughness enters the battlefield under your control, you may pay {1}. If you do, draw a card.

Artifact creatures you control get +2/+2.

Flying

Whenever you cast a historic spell, return target creature card with mana value 3 or less from your graveyard to the battlefield. (Artifacts, legendaries, and Sagas are historic.)

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

Draw two cards.

As Urza's Incubator enters the battlefield, choose a creature type.

Creature spells of the chosen type cost {2} less to cast.

Whenever you cast an artifact spell, draw a card.

{2}: Untap target artifact creature.