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

Each creature gets +1/+1 for each other creature on the battlefield that shares at least one creature type with it. (For example, if two Goblin Warriors and a Goblin Shaman are on the battlefield, each gets +2/+2.)

{T}: Add one mana of any color in your commander's color identity. Sacrifice this artifact: Draw a card.

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

This artifact enters tapped. {T}: Add {R}.

This artifact enters tapped. {T}: Add two mana of different colors.

{T}: Add {C}{C}. {2}, {T}, Sacrifice this artifact: Draw two cards.

As this artifact enters, choose a color. Creatures you control of the chosen color get +1/+0. {T}: Add one mana of the chosen color.

{T}: Add {U} or {R}. {U}{R}, {T}, Sacrifice this artifact: Draw a card.

{T}: Add {U} or {R}. {U/R}{U/R}{U/R}{U/R}, {T}, Sacrifice this artifact: Draw two cards.

{1}, {T}: Add {U}{R}.

{T}: Add {U}. {2}{U}: Put an hour counter on this artifact. At the beginning of each upkeep, put an hour counter on this artifact. When the twelfth hour counter is put on this artifact, shuffle your hand and graveyard into your library, then draw seven cards. Exile this artifact.

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

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.

{1}: Look at the top three cards of your library, then put them back in any order. {T}: Draw a card, then put this artifact on top of its owner's library.

This artifact enters tapped. {T}: Add {U}.

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

This artifact enters tapped. {T}: Add one mana of any color that a basic land you control could produce.

{T}: Add {C}. {T}: Add {U} or {R}. This artifact deals 1 damage to you.

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

As this artifact enters, choose a creature type. Creatures you control of the chosen type get +1/+1. Whenever you cast a creature spell of the chosen type, draw a card.

{T}: Draw three cards. {2}{U}{U}: Return Arcanis to its owner's hand.

Flying Whenever you cast a spell, put the cards in your hand on the bottom of your library in any order, then draw that many cards.

Body of Knowledge's power and toughness are each equal to the number of cards in your hand. You have no maximum hand size. Whenever this creature is dealt damage, draw that many cards.

{3}, Sacrifice this creature: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Flying You have no maximum hand size. Whenever a creature token you control deals combat damage to a player, draw a card.

Skulk (This creature can't be blocked by creatures with greater power.) At the beginning of your upkeep, you may discard all the cards in your hand. If you do, draw that many cards.

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

Instant and sorcery spells you cast cost {1} less to cast.

Whenever you cast an instant or sorcery spell, this creature deals 2 damage to each opponent.

{U}, {T}: Each player discards their hand, then draws cards equal to the greatest number of cards a player discarded this way.

{1}{R}, {T}, Sacrifice this creature: Each player discards their hand, then draws seven cards.

Flying, vigilance When this creature dies, draw a card.

{U}, {T}: Draw two cards. {R}, {T}, Discard a card: This creature deals damage to target creature equal to the discarded card's mana value.

This spell can't be countered. Flying Whenever you draw a card, Niv-Mizzet deals 1 damage to any target. Whenever a player casts an instant or sorcery spell, you draw a card.

Flying Whenever you draw a card, Niv-Mizzet deals 1 damage to any target. {T}: Draw a card.

Psychosis Crawler's power and toughness are each equal to the number of cards in your hand. Whenever you draw a card, each opponent loses 1 life.

Whenever this creature or another non-Human creature you control enters, you may draw a card. If you do, discard a card.

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.

Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.

If a red source you control would deal damage to an opponent or a permanent an opponent controls, it deals that much damage plus 2 instead.

When this creature enters, you may search your library for an artifact card with mana value 1 or less, reveal that card, put it into your hand, then shuffle.

You have no maximum hand size. At the beginning of your upkeep, if you have exactly thirteen cards in your hand, you win the game. {3}{U}: Draw a card.

Other blue creatures you control have "Whenever this creature becomes tapped, draw a card, then discard a card." Other artifact creatures you control get +1/+1. {U/P}: Until end of turn, target creature you control becomes a blue artifact in addition to its other colors and types. Activate only as a sorcery. ({U/P} can be paid with either {U} or 2 life.)

When this creature enters, shuffle the cards from your hand into your library, then draw that many cards.

When this creature enters, shuffle the cards from your hand into your library, then draw that many cards. {R}, Sacrifice this creature: Each player shuffles the cards from their hand into their library, then draws that many cards.

Flying Whenever a creature with flying attacks, you may draw a card.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Choose one or both — • Counter target spell. • Draw two cards, then discard a card.

Draw three cards, then put two cards from your hand on top of your library in any order.

Fateful Showdown deals damage to any target equal to the number of cards in your hand. Discard all the cards in your hand, then draw that many cards.

Choose one — • Counter target noncreature spell unless its controller pays {2}. • Izzet Charm deals 2 damage to target creature. • Draw two cards, then discard two cards.

Draw a card for each attacking creature.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Draw two cards.

Counter target noncreature spell.

Scry 1. (Look at the top card of your library. You may put that card on the bottom.) Draw a card.

Discard all the cards in your hand, then draw that many cards.

{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 one mana of any color in your commander's color identity.

This land enters tapped. {T}: Add {R}. Cycling {1}{R} ({1}{R}, Discard this card: Draw a card.)

This land enters tapped. {T}: Add {U}. Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.)

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

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

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

{T}: Add {C}. {1}, {T}, Sacrifice this land: Search your library for a basic Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

This land enters tapped. {T}: Add {U} or {R}.

({T}: Add {U}.)

This land enters tapped. When this land enters, return a land you control to its owner's hand. {T}: Add {U}{R}.

This land enters tapped. {T}: Add {U}. {4}{U}, {T}, Sacrifice this land: Draw two cards.

({T}: Add {U} or {R}.) This land enters tapped.

({T}: Add {R}.)

This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for up to two basic land cards that share a land type, put them onto the battlefield tapped, then shuffle.

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

This land enters tapped. {T}: Add {U}. Cycling {2} ({2}, Discard this card: Draw a card.)

This land enters tapped. {T}: Add {R}. Cycling {2} ({2}, Discard this card: Draw a card.)

This land enters tapped unless you control an Island or a Mountain. {T}: Add {U} or {R}.

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {U} or {R}.

{T}: Add {C}{C}. Activate only if you control five or more lands.

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

This land enters tapped. As it enters, choose a color other than red. {T}: Add {R} or one mana of the chosen color.

Discard your hand, then draw a card for each card you've discarded this turn.

Draw two cards, then discard two cards. Flashback {2}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Choose one — • Into the Fire deals 2 damage to each creature, planeswalker, and battle. • Put any number of cards from your hand on the bottom of your library, then draw that many cards plus one.