Creatures you control get +1/+1 and have flying and indestructible. At the beginning of your upkeep, sacrifice a creature. If you can't, sacrifice this artifact.

Permanents you control gain hexproof and indestructible until end of turn.

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.

Indestructible (Effects that say "destroy" don't destroy this artifact.) Myr creatures get +1/+1. {5}: Create a 1/1 colorless Myr artifact creature token.

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

As a historic permanent you control enters, it becomes a 7/7 Dinosaur creature in addition to its other types. (Artifacts, legendaries, and Sagas are historic.)

{T}: Add one mana of any color.

{T}: Add {G}.

Creatures you control have "{T}: Add one mana of any color."

{T}: Add {W}.

{T}: Add {R}.

{T}: Add {B}.

Whenever a creature enters, you may add an amount of {C} equal to the number of creatures you control that share a creature type with it.

{1}, {T}, Sacrifice this artifact: Search your library for an artifact card with a mana ability or a basic land card, reveal it, put it into your hand, then shuffle.

{T}: Add {C}{C}. Spend this mana only to cast Myr spells or activate abilities of Myr. {3}, {T}: Return target Myr card from your graveyard to your hand.

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

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

{T}: Add {U}.

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

Search your library for a creature card, reveal that card, put it into your hand, then shuffle.

{T}, Sacrifice three artifacts: Search your library for an artifact card, put it onto the battlefield, then shuffle.

When this creature enters, you may search your library for a Myr card, reveal it, put it into your hand, then shuffle.

Search your library for a creature card, reveal it, then shuffle and put that card on top.

Choose one or both — • Create a token that's a copy of target artifact. • Create a token that's a copy of target creature, except it's an artifact in addition to its other types.

Create a token that's a copy of target creature. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

{T}: Add {C}. Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

({T}: Add {B} or {R}.)

({T}: Add {B} or {G}.)

({T}: Add {G} or {U}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

{T}: Add one mana of any color in your commander's color identity.

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

({T}: Add {G}.)

{T}: Add {C}. {T}, Sacrifice this land: Destroy target land. Its controller may search their library for a basic land card, put it onto the battlefield, then shuffle.

({T}: Add {W} or {B}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

({T}: Add {W} or {U}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

({T}: Add {G} or {U}.) This land enters tapped. When this land enters, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

({T}: Add {U}.)

{T}: Add {C}. {1}{U}, {T}: Put target artifact card from your graveyard on top of your library.

({T}: Add {R}.)

({T}: Add {B} or {G}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

This land enters tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell that shares a creature type with your commander, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

({T}: Add {W}.)

({T}: Add {R} or {W}.)

({T}: Add {G} or {W}.)

({T}: Add {W} or {B}.)

{T}: Add {C}. {T}, Pay 1 life: Add one mana of any color. Activate only if you control an artifact.

({T}: Add {R} or {G}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

({T}: Add {B}.)

({T}: Add {R} or {G}.)

({T}: Add {G} or {W}.) As this land enters, you may pay 2 life. If you don't, it enters tapped.

This land enters tapped unless you have two or more opponents. {T}: Add {U} or {R}.

({T}: Add {G} or {U}.)

({T}: Add {W} or {U}.)

({T}: Add {U} or {B}.)

({T}: Add {U} or {R}.)

Return each creature card with mana value X from your graveyard to the battlefield.

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

Gift a card (You may promise an opponent a gift as you cast this spell. If you do, they draw a card before its other effects.) Return target permanent card from your graveyard to your hand. If the gift was promised, instead return two target permanent cards from your graveyard to your hand.

Tap two untapped artifacts you control: Untap target artifact.

Other Myr creatures you control get +1/+1. {1}, {T}: Untap each other Myr you control.

You may activate abilities of creatures you control as though those creatures had haste. {1}, {T}: Untap target creature.

Commander creatures you own have "{2}, Sacrifice an artifact: Put a +1/+1 counter on this creature and draw a card."

Target player draws X cards plus an additional card for each time they've cast a commander from the command zone this game.

{T}: Draw a card. Activate only if you created a token this turn. {8}, {T}, Sacrifice this artifact: Create a 10/10 colorless Eldrazi creature token.

Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

{2}, Sacrifice this creature: Draw a card.

Changeling (This card is every creature type.) As this creature enters, choose a creature type. You may look at the top card of your library any time. You may cast creature spells of the chosen type from the top of your library.

{2}: This creature gains flying until end of turn. {2}, Sacrifice this creature: Draw a card.

Artifacts you control are Clues in addition to their other types and have "{2}, Sacrifice this artifact: Draw a card." Whenever you sacrifice a Clue, target creature can't be blocked this turn.

Flying As long as you control four or more artifacts, this creature has hexproof. (It can't be the target of spells or abilities your opponents control.) Tap two untapped artifacts you control: Draw a card.

Equipped creature gets +1/-1. Whenever equipped creature dies, draw two cards. Equip {1}

Prototype {3}{R} — 2/2 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)

Flying, vigilance

{2}{W}: Adapt 1. (If this creature has no +1/+1 counters on it, put a +1/+1 counter on it.) Whenever one or more +1/+1 counters are put on this creature, it gains double strike until end of turn.

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

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep. You draw a card at the beginning of the next turn's upkeep.

Destroy target permanent. Its controller creates a 3/3 green Beast creature token.

Multikicker {1} (You may pay an additional {1} any number of times as you cast this spell.) Choose any target, then choose another target for each time this spell was kicked. Comet Storm deals X damage to each of them.

Choose target artifact or enchantment. Its owner shuffles it into their library.

When this creature dies, it deals 2 damage to any target.

Exile target creature and all other creatures with the same name as that creature. Flashback {5}{B}{B} (You may cast this card from your graveyard for its flashback cost. Then exile it.)