Flash Whenever a creature you control deals combat damage to a player, draw a card. When Enduring Curiosity dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)

Flash Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, draw a card.

Scry 2, then draw a card. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Enchant player At the beginning of each of enchanted player's postcombat main phases, there is an additional beginning phase after this phase. (The end step happens after the added untap, upkeep, and draw steps.)

Flying, deathtouch, lifelink Other creatures you control with flying get +1/+0. Whenever you cast an artifact or enchantment spell, create a 1/1 blue Faerie creature token with flying.

Flying When this creature enters, return an enchantment card from your graveyard to your hand or unlock a locked door of a Room you control. Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, create a 3/1 white Spirit creature token with flying.

Creatures you control have myriad. (Whenever a creature with myriad attacks, for each opponent other than defending player, you may create a token copy that's tapped and attacking that player or a planeswalker they control. Exile the tokens at end of combat.)

Birds you control get +1/+1 and have vigilance. At the beginning of your end step, for each spell you've cast this turn, create a 1/2 blue Bird creature token with flying named Storm Crow.

Impending 4—{2}{W}{W} (If you cast this spell for its impending cost, it enters with four time counters and isn't a creature until the last is removed. At the beginning of your end step, remove a time counter from it.) Whenever this permanent enters or attacks, create two 2/1 white Insect creature tokens with flying.

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

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

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

{1}, {T}: Add {W}{B}.

At the beginning of your upkeep, create a token that's a copy of another target nonland permanent you control.

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

Whenever an opponent casts their second spell each turn, you create a Treasure token.

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. Once during each of your turns, you may cast a spell from your hand or the top of your library without paying its mana cost.

Whenever you cast a noncreature spell, create an X/X blue Shark creature token with flying, where X is that spell's mana value. Cycling {X}{1}{U} ({X}{1}{U}, Discard this card: Draw a card.) When you cycle this card, create an X/X blue Shark creature token with flying.

Whenever you cast an enchantment spell, create a 4/4 white Angel creature token with flying.

Creatures can't attack you or planeswalkers you control unless their controller pays {X} for each of those creatures, where X is the number of enchantments you control.

Whenever a creature dies, put a charge counter on this enchantment. At the beginning of your first main phase, add {B} for each charge counter on this enchantment.

Enchantment spells you cast cost {1} less to cast. Unlock costs you pay cost {1} less.

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.

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

Prevent all combat damage that would be dealt to you this turn. For each 1 damage prevented this way, create a 2/1 white and black Inkling creature token with flying.

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

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

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

{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, return a land you control to its owner's hand. {T}: Add {W}{U}.

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

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

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

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

This land enters tapped. When this land enters, look at the top three cards of your library, then put them back in any order. {T}: Add {U}.

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

({T}: Add {U}.)

When this land enters, sacrifice it. When you do, search your library for a basic Plains, Island, or Swamp card, put it onto the battlefield tapped, then shuffle and you gain 1 life.

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

({T}: Add {W}.)

({T}: Add {B}.)

{T}: Add {C}. {T}: Add {W} or {B}. Activate only if you control a Swamp.

{T}: Add {C}. {T}: Add {U} or {B}. Activate only if you control a Swamp.

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 {B}.

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 {W} or {U}.

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 {W} or {B}.

{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 white. {T}: Add {W} or one mana of the chosen color.

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

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

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

Destroy all nonenchantment creatures.

Whenever an opponent casts a spell, you may exchange control of this creature and that spell. If you do, you may choose new targets for the spell. (If the spell becomes a permanent, you control that permanent.)

Each spell you cast that's a Demon, Horror, or Nightmare costs {1} less to cast. Whenever you cast a spell, if the amount of mana spent to cast it was less than its mana value, target opponent loses life equal to the difference.

Arvinox isn't a creature unless you control three or more permanents you don't own. At the beginning of your end step, exile the bottom card of each opponent's library face down. For as long as those cards remain exiled, you may look at them, you may cast permanent spells from among them, and you may spend mana as though it were mana of any color to cast those spells.

Indestructible As long as your devotion to white and black is less than seven, Athreos isn't a creature. At the beginning of your end step, put a coin counter on another target creature. Whenever a creature with a coin counter on it dies or is put into exile, return that card to the battlefield under your control.

Flying, trample Once during each of your turns, you may cast an enchantment spell by paying life equal to its mana value rather than paying its mana cost. {2}{B}, Sacrifice another enchantment: This creature gets +X/+0 until end of turn, where X is the sacrificed enchantment's mana value.

Constellation — Whenever this creature or another enchantment you control enters, creatures your opponents control get -1/-1 until end of turn.

Flying Eerie — Whenever this creature or another enchantment you control enters and whenever you fully unlock a Room, tap up to one target creature and put a stun counter on it. Stun counters can't be removed from permanents your opponents control. (They won't untap if they have stun counters.)

Whenever you cast an enchantment spell, you may draw a card.

Lifelink When this creature enters, return up to one target creature card from your graveyard to the battlefield with a lifelink counter on it. Miracle {1}{B} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

Flying Whenever another nontoken creature you control dies, you may exile it. If you do, create a token that's a copy of that creature, except it's 1/1 and it's a Nightmare in addition to its other types.

Whenever an enchantment you control enters, you may create a token that's a copy of it. Do this only once each turn.

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.

Enchantment spells you cast cost {1} less to cast. Whenever an enchantment you control is put into a graveyard from the battlefield, put a +1/+1 counter on this creature.

Create X 4/4 white Angel creature tokens with flying. Miracle {X}{W}{W} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)

Look at the top three cards of your library, then put them back in any order. You may shuffle. Draw a card.

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.

Return all artifact and enchantment cards from your graveyard to the battlefield. Miracle {3}{W} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)