Artifacts you control have indestructible. (Effects that say "destroy" don't destroy them. Artifact creatures with indestructible can't be destroyed by damage.)

Flash If a player would begin an extra turn, that player skips that turn instead. {4}, {T}, Exile Gerrard's Hourglass Pendant: Return to the battlefield tapped all artifact, creature, enchantment, and land cards in your graveyard that were put there from the battlefield this turn.

Equipped creature has haste and shroud. (It can't be the target of spells or abilities.) Equip {0}

{2}: This artifact becomes a copy of target artifact, creature, enchantment, or land until end of turn.

You may have this artifact enter as a copy of any artifact on the battlefield.

When this artifact enters, exile target card from a graveyard. {T}, Sacrifice this artifact: Exile each opponent's graveyard. {1}, {T}, Sacrifice this artifact: Draw a card.

Flying Feeder Mandibles — When this creature enters, exile target player's graveyard. For each artifact or land card exiled this way, create a 1/1 colorless Insect artifact creature token with flying.

This creature enters with X +1/+1 counters on it. When this creature dies, create a 1/1 colorless Thopter artifact creature token with flying for each +1/+1 counter on this creature. {1}, {T}: Put a +1/+1 counter on this creature.

When this creature enters, create four 1/1 colorless Myr artifact creature tokens. Whenever this creature attacks, you may tap X untapped Myr you control. If you do, this creature gets +X/+0 until end of turn and deals X damage to the player or planeswalker it's attacking.

{1}, {T}, Sacrifice this artifact: Add one mana of any color. When this artifact is put into a graveyard from the battlefield, draw a card.

When this creature enters, you gain 2 life. When this creature leaves the battlefield, draw a card.

When this artifact enters, draw three cards. {T}: Add three mana of any one color. Whenever one or more creatures an opponent controls attack you and aren't blocked, that player draws three cards and gains control of this artifact. Untap it.

Whenever an opponent casts their first noncreature spell each turn, draw a card unless that player pays {X}, where X is this creature's power.

When this creature enters, you gain 2 life. When this creature dies, draw a card.

When this artifact enters or is put into a graveyard from the battlefield, draw a card.

{W}, Sacrifice this artifact: You gain 2 life. When this artifact is put into a graveyard from the battlefield, draw a card.

When this artifact enters, scry 1, then draw a card. {2}, {T}, Sacrifice this artifact: You gain 3 life. When this artifact is put into a graveyard from the battlefield, its owner shuffles it into their library.

When this artifact enters or is put into a graveyard from the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

You may look at the top card of your library any time. You may cast artifact spells and colorless spells from the top of your library. {T}, Pay 1 life: Exile the top card of your library.

This artifact enters tapped. {2}, {T}, Sacrifice this artifact: Add two mana in any combination of colors. When this artifact is put into a graveyard from the battlefield, draw a card.

When The Mightstone and Weakstone enters, choose one — • Draw two cards. • Target creature gets -5/-5 until end of turn. {T}: Add {C}{C}. This mana can't be spent to cast nonartifact spells. (Melds with Urza, Lord Protector.)

Vigilance Whenever you cast a spell, creatures you control get +1/+0 until end of turn. Scry 1. When Gandalf dies, you may put it into its owner's library fifth from the top.

As this creature enters, choose a nonland card name. Activated abilities of sources with the chosen name can't be activated.

Exile target creature you control, then return it to the battlefield under its owner's control. Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Exile target nonland permanent. Its controller incubates X, where X is its mana value. (They create an Incubator token with X +1/+1 counters on it and "{2}: Transform this token." It transforms into a 0/0 Phyrexian artifact creature.)

Exile all nontoken creatures you control, then roll a d20. 1—9 | Return those cards to the battlefield under their owner's control at the beginning of the next end step. 10—20 | Return those cards to the battlefield under their owner's control, then exile them again. Return those cards to the battlefield under their owner's control at the beginning of the next end step.

Return target spell to its owner's hand. Draw a card.

Exile target nonland permanent. For as long as that card remains exiled, its owner may play it. A spell cast by an opponent this way costs {2} more to cast.

{T}: Add {W}.

{T}: Add {C}. {3}, {T}: Draw a card. Activate only if you control a creature with power 4 or greater.

Indestructible {T}: Add {C}.

{T}: Add {C}. {2}, {T}, Sacrifice this land: Destroy target nonbasic land an opponent controls. That land's controller may search their library for a basic land card, put it onto the battlefield, then shuffle. You may search your library for a basic land card, put it onto the battlefield, then shuffle.

{T}: Add {W}. Channel — {2}{W}, Discard this card: It deals 4 damage to target attacking or blocking creature. This ability costs {1} less to activate for each legendary creature you control.

This land enters tapped. At the beginning of your upkeep, if you control seven or more Plains, you may return target creature card from your graveyard to the battlefield. {T}: Add {W}.

{T}: Add {C}. {2}, {T}: Each player draws a card, then discards a card.

{T}: Add {C}. {T}, Sacrifice a creature: You gain 1 life.

At the beginning of your upkeep, if you control three or more artifacts, you gain 1 life. {T}: Add {C}. {4}, {T}, Sacrifice Inventors' Fair: Search your library for an artifact card, reveal it, put it into your hand, then shuffle. Activate only if you control three or more artifacts.

Minas Tirith enters tapped unless you control a legendary creature. {T}: Add {W}. {1}{W}, {T}: Draw a card. Activate only if you attacked with two or more creatures this turn.

{T}: Add {C}. {1}, {T}, Sacrifice an artifact: You gain 1 life.

({T}: Add {W}.)

You have no maximum hand size. {T}: Add {C}.

{T}: Add {C}. {2}, {T}, Sacrifice a Desert: Exile all graveyards.

{T}: Add {C}. {X}{X}, {T}, Sacrifice this land: Create X Treasure tokens.

Vigilance If a permanent entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time. Permanents entering don't cause abilities of permanents your opponents control to trigger.

When this creature dies, add {C}{C}{C}.

As this artifact enters, choose artifact, creature, enchantment, instant, or sorcery. Spells you cast of the chosen type cost {1} less to cast.

Colorless creatures you control get +2/+2. Whenever you tap a permanent for {C}, add an additional {C}. Whenever you cast a colorless spell, you gain 2 life.

Artifact spells you cast cost {1} less to cast.

{T}: Add {C}. {1}, {T}, Sacrifice this artifact: Draw a card.

When this artifact enters or is put into a graveyard from the battlefield, create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Kicker {3} Indestructible When this artifact enters, if it was kicked, create two tapped tokens that are copies of this artifact. {T}: Add one mana of any color.

Whenever this artifact or another nontoken artifact you control is put into a graveyard from the battlefield or is put into exile from the battlefield, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")

When this creature enters, you may search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. When this creature dies, you may draw a card.

You have no maximum hand size. {T}: Add {C}.

{T}: Add {C}{C}{C}.

Reach When this creature enters, you and target opponent each create a tapped Powerstone token. {7}: Look at the top four cards of your library. You may reveal an artifact card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

Return all artifact and enchantment cards from your graveyard to the battlefield.

Return to the battlefield all permanent cards in your graveyard that were put there from the battlefield this turn.

Whenever Loran or another legendary creature you control enters, return target artifact card from your graveyard to your hand.

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

Whenever this creature dies or another artifact you control is put into a graveyard from the battlefield, return to your hand target artifact card in your graveyard with lesser mana value.

Each player returns to the battlefield all artifact, creature, enchantment, and land cards in their graveyard that were put there from the battlefield this turn.

{T}, Sacrifice an artifact: Target player mills three cards. Whenever an artifact enters, you may untap this artifact.

Sacrifice an artifact: Add {C}{C}.

Magical Tinkering — {W}, {T}, Sacrifice an artifact: Search your library for an artifact card with mana value equal to 1 plus the sacrificed artifact's mana value, put it onto the battlefield, then shuffle. Activate only as a sorcery.

Modular 2 (This creature enters with two +1/+1 counters on it. When it dies, you may put its +1/+1 counters on target artifact creature.) {T}, Sacrifice an artifact: Search your library for a Construct card, reveal it, put it into your hand, then shuffle.