You may look at the top card of your library any time. You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost. {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.

Target player draws X cards.

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

{B}, Pay 2 life: Draw a card.

At the beginning of each player's draw step, if this artifact is untapped, that player draws an additional card.

+2: Each player draws a card. −1: Target player draws a card. −10: Target player mills twenty cards.

You have no maximum hand size. If an effect causes you to discard a card, discard it, but you may put it on top of your library instead of into your graveyard.

Each opponent can't draw more than one card each turn. −2: Look at the top four cards of your library. You may reveal a noncreature, nonland card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

At the beginning of your upkeep, you draw a card and you lose 1 life.

Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle. Draw a card at the beginning of the next turn's upkeep.

+1: Draw a card. At the beginning of the next end step, untap up to two lands. −3: Put target nonland permanent into its owner's library third from the top. −8: You get an emblem with "Whenever you draw a card, exile target permanent an opponent controls."

Prevent all combat damage that would be dealt this turn.

If this card is in your opening hand, you may begin the game with it on the battlefield. You have hexproof. (You can't be the target of spells or abilities your opponents control.)

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

Add {B}{B}{B}.

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

At the beginning of your upkeep, if an opponent controls more lands than you, you may search your library for up to three basic land cards, reveal them, put them into your hand, then shuffle.

At the beginning of your upkeep, flip a coin. If you lose the flip, this artifact deals 3 damage to you. {T}: Add {C}{C}.

{T}: Add {C}. {1}, {T}: Add one mana of any color.

This artifact doesn't untap during your untap step. At the beginning of your upkeep, you may pay {4}. If you do, untap this artifact. At the beginning of your draw step, if this artifact is tapped, it deals 1 damage to you. {T}: Add {C}{C}{C}.

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

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

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

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

Flying (This creature can't be blocked except by creatures with flying or reach.) Nightmare's power and toughness are each equal to the number of Swamps you control.

Enchant creature card in a graveyard When this Aura enters, if it's on the battlefield, it loses "enchant creature card in a graveyard" and gains "enchant creature put onto the battlefield with this Aura." Return enchanted creature card to the battlefield under your control and attach this Aura to it. When this Aura leaves the battlefield, that creature's controller sacrifices it. Enchanted creature gets -1/-0.

{T}, Exile this artifact: Shuffle your graveyard into your library.

This spell costs {2} less to cast if it targets a blue spell. Counter target spell unless its controller pays {3}.

{T}: Add {C}. {T}: Add {W} or {U}. This land deals 1 damage to you.

{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.)

This land enters tapped. When this land enters, exile target player's graveyard. {T}: Add {B}.

{2}, {T}: Add {B} for each Swamp you control.

{T}: Add {C}. {T}: Add {W} or {B}. This land deals 1 damage to you.

Whenever this land becomes tapped, it deals 1 damage to you. {T}: Add one mana of any color.

Coastal Tower enters tapped. {T}: Add {W} or {U}.

Indestructible {T}: Add {C}.

({T}: Add {U}.)

{T}: Add {C}. {1}: This land becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land. {T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

({T}: Add {U}.) This land enters tapped unless you control three or more other Islands. When this land enters untapped, you may put target instant or sorcery card from your graveyard on top of your library.

({T}: Add {W}.)

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

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

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

({T}: Add {B}.)

{T}: Add {C}. {T}, Sacrifice this land: Destroy target land.

({T}: Add {B}.)

{T}: Add {C}. {T}: Add one mana of any color. This land deals 3 damage to you.

{T}: Add {C}. {T}: Add {W} or {U}. This land doesn't untap during your next untap step.

{T}: Add {C}. {2}, {T}: This land becomes a copy of target land, except it has this ability.

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

{T}: Add {C}. {T}: Add {U} or {B}. This land deals 1 damage to you.

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

{T}: Add {C}. If you control an Urza's Power-Plant and an Urza's Tower, add {C}{C} instead.

{T}: Add {C}. If you control an Urza's Mine and an Urza's Tower, add {C}{C} instead.

{T}: Add {C}. If you control an Urza's Mine and an Urza's Power-Plant, add {C}{C}{C} instead.

Return target permanent to its owner's hand.

Enchant permanent You control enchanted permanent.

Enchant creature You control enchanted creature.

Counter target spell.

Destroy all creatures.

Exile two target artifacts.

Return all creatures to their owners' hands.

{T}: Destroy target tapped creature. Activate only during your turn, before attackers are declared.

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

This artifact enters tapped. {1}, {T}: Destroy all artifacts, creatures, and enchantments.

Enchant creature When this Aura enters, tap enchanted creature. Enchanted creature doesn't untap during its controller's untap step. At the beginning of the upkeep of enchanted creature's controller, that player may pay {4}. If the player does, untap the creature.

Destroy all tapped creatures. You gain 2 life for each creature destroyed this way.

{T}: Destroy target tapped creature.

When this creature enters, exile up to one target nonland, nontoken permanent you don't control with mana value 4 or less. When this creature leaves the battlefield, the exiled card's owner creates an X/X blue Illusion creature token, where X is the mana value of the exiled card.

Exile target creature. Its controller gains life equal to its power.

Destroy target nonartifact, nonblack creature. It can't be regenerated.

{T}, Sacrifice this artifact: Exile target player's graveyard.

Return target creature to its owner's hand.

Activated abilities of artifacts your opponents control can't be activated. +1: Until your next turn, up to one target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value. −2: You may reveal an artifact card you own from outside the game or choose a face-up artifact card you own in exile. Put that card into your hand.

Artifacts, creatures, and lands your opponents control enter tapped.