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

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

{3}, {T}, Sacrifice Crystal Chimes: Return all enchantment cards from your graveyard to your hand.

You have no maximum hand size. {T}: Add one mana of any color.

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

{2}, {T}: Copy target triggered ability you control. You may choose new targets for the copy. (A triggered ability uses the words "when," "whenever," or "at.")

{2}, {T}: Exile target permanent you control. {2}, Sacrifice Synod Sanctum: Return all cards exiled with Synod Sanctum to the battlefield under your control.

{2}, Sacrifice Voyager Staff: Exile target creature. Return the exiled card to the battlefield under its owner's control at the beginning of the next end step.

Flying Project Image — When Astral Dragon enters the battlefield, create two tokens that are copies of target noncreature permanent, except they're 3/3 Dragon creatures in addition to their other types, and they have flying.

Deathtouch When Bitterheart Witch dies, you may search your library for a Curse card, put it onto the battlefield attached to target player, then shuffle.

You may have Clever Impersonator enter the battlefield as a copy of any nonland permanent on the battlefield.

Constellation — Whenever Doomwake Giant or another enchantment enters the battlefield under your control, creatures your opponents control get -1/-1 until end of turn.

Whenever an opponent draws a card, Fate Unraveler deals 1 damage to that player.

Constellation — Whenever Grim Guardian or another enchantment enters the battlefield under your control, each opponent loses 1 life.

If you would draw a card while your library has no cards in it, you win the game instead.

{1}{R}, {T}, Sacrifice Magus of the Wheel: Each player discards their hand, then draws seven cards.

Blue spells and red spells you cast cost {1} less to cast. {1}{B}: Regenerate Nightscape Familiar.

Constellation — Whenever an enchantment enters the battlefield under your control, you may have Protean Thaumaturge become a copy of another target creature, except it has this ability.

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

Flying At the beginning of your postcombat main phase, there is an additional beginning phase after this phase. (The beginning phase includes the untap, upkeep, and draw steps.)

Haste Into the TARDIS — Whenever The Ninth Doctor becomes untapped during your untap step, you get an additional upkeep step after this step.

You may have Copy Enchantment enter the battlefield as a copy of any enchantment on the battlefield.

Enchant player Whenever a player attacks enchanted player with one or more creatures, that attacking player may discard a card. If the player does, they draw a card.

Enchant player Whenever enchanted player is attacked, create a 2/2 black Zombie creature token. Each opponent attacking that player does the same.

Enchant player Whenever enchanted player casts an instant or sorcery spell, each other player may copy that spell and may choose new targets for the copy they control.

Enchant player Whenever enchanted player draws a card, they lose 2 life and you gain 2 life. Madness {3}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Enchant player Creatures attacking enchanted player have trample. Whenever a creature deals combat damage to enchanted player, that player exiles the top card of their library. Until end of turn, that creature's controller may play that card and they may spend mana as though it were mana of any color to cast that spell.

Enchant player Whenever a player attacks enchanted player with one or more creatures, that attacking player may tap or untap target permanent of their choice.

Enchant player At the beginning of your upkeep, you may search your library for a Curse card that doesn't have the same name as a Curse attached to enchanted player, put it onto the battlefield attached to that player, then shuffle.

Enchant player At the beginning of enchanted player's upkeep, that player exiles two cards from their graveyard.

Enchant player Whenever enchanted player is attacked, create a Gold token. Each opponent attacking that player does the same. (A Gold token is an artifact with "Sacrifice this artifact: Add one mana of any color.")

Enchant player Whenever enchanted player casts a spell other than the first spell they cast each turn or copies a spell, Curse of Shaken Faith deals 2 damage to them.

Enchant player At the beginning of enchanted player's upkeep, any number of target players other than that player each draw cards equal to the number of Curses attached to that player.

Enchant player At the beginning of enchanted player's upkeep, that player mills two cards.

Enchant player Whenever a land enters the battlefield under enchanted player's control, you create a 2/2 black Zombie creature token with decayed. (It can't block. When it attacks, sacrifice it at end of combat.)

Enchant player At the beginning of enchanted player's upkeep, that player reveals cards from the top of their library until they reveal a creature card. Put that card onto the battlefield under your control. That player puts the rest of the revealed cards into their graveyard.

Enchant player Whenever enchanted player is attacked, you draw a card. Each opponent attacking that player does the same.

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

Enchant player At the beginning of each end step, enchanted player mills X cards, where X is the number of cards put into their graveyard from anywhere this turn.

If Leyline of Anticipation is in your opening hand, you may begin the game with it on the battlefield. You may cast spells as though they had flash.

Enchant player Whenever enchanted player casts a noncreature spell, roll a d6. Maddening Hex deals damage to that player equal to the result. Then attach Maddening Hex to another one of your opponents chosen at random.

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

Enchant player At the beginning of enchanted player's first upkeep each turn, that player gets an additional upkeep step after this step.

Whenever a player draws a card, that player loses 2 life unless they pay {2}.

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Cumulative upkeep—Draw a card. (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.) At the beginning of your end step, sacrifice a land and discard your hand.

Enchant player Whenever a creature enters the battlefield under enchanted player's control, that player loses 1 life and you gain 1 life.

You may pay {1}{B} rather than pay this spell's mana cost. If the {1}{B} cost was paid, an opponent draws a card. Exile target creature or planeswalker.

Target player draws two cards, then Cerebral Vortex deals damage to that player equal to the number of cards they've drawn this turn.

The owner of target permanent shuffles it into their library, then reveals the top card of their library. If it's a permanent card, they put it onto the battlefield.

Bojuka Bog enters the battlefield tapped. When Bojuka Bog enters the battlefield, exile target player's graveyard. {T}: Add {B}.

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

Crumbling Necropolis enters the battlefield tapped. {T}: Add {U}, {B}, or {R}.

{T}: Add {C}. {1}, {T}, Sacrifice Emergence Zone: You may cast spells this turn as though they had flash.

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

({T}: Add {U}.)

({T}: Add {R}.)

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

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

({T}: Add {B}.)

This spell costs {1} less to cast for each creature on the battlefield. Blasphemous Act deals 13 damage to each creature.

Destroy target creature or enchantment an opponent controls. You lose life equal to that permanent's mana value.

Choose a creature at random, then destroy the rest.

Converge — You draw X cards and you lose X life, where X is the number of colors of mana spent to cast this spell.

Scry 2, then draw two cards. You lose 2 life.

Destroy target artifact you don't control. Overload {4}{R} (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")