When this Case enters, investigate.

To solve — You control three or more artifacts. (If unsolved, solve at the beginning of your end step.)

Solved — , Sacrifice this Case: Put four +1/+1 counters on target noncreature artifact. It becomes a 0/0 Bird creature with flying in addition to its other types.

When this Case enters, conjure four cards named Fblthp, the Lost into your library, then shuffle. Draw a card.

To solve — You control a legendary Homunculus.

Solved — You may look at the top card of your library any time and you may play lands and cast spells from the top of your library.

Instant and sorcery spells you cast cost less to cast.

To solve — You've cast four or more instant and sorcery spells this turn. (If unsolved, solve at the beginning of your end step.)

Solved — Whenever you cast an instant or sorcery spell, draw a card.

At the beginning of your upkeep, surveil 1.

To solve — There are fifteen or more cards in your graveyard. (If unsolved, solve at the beginning of your end step.)

Solved — Whenever you cast a nonlegendary creature spell, copy that spell. (The copy becomes a token.)

Instant and sorcery spells you control have rebound.

Enchant creature
When this Aura enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

As Censorship enters, choose a word.
Whenever a player says the chosen word, Censorship deals 2 damage to that player.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)
When you unlock this door, search your library for a Room card that doesn't have the same name as a Room you control, reveal it, put it into your hand, then shuffle.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)
At the beginning of your upkeep, surveil 1. You win the game if there are eight or more different names among unlocked doors of Rooms you control.

Whenever a player casts a spell, counter that spell unless that player pays , where X is the number of cards in all graveyards with the same name as the spell.

At the beginning of your upkeep, if you control a red or green permanent, draw a card, then discard a card. If you control a red permanent and a green permanent, instead draw two cards, then discard a card.

When this enchantment enters, return up to one target instant or sorcery card from your graveyard to your hand.
Whenever you cast an instant or sorcery spell, draw a card. Then discard a card unless there are three or more Lesson cards in your graveyard.

Enchant land
Enchanted land has ", Discard a card: Gain control of target creature until end of turn."

Enchant creature
Enchanted creature gets -13/-0.

Enchant creature
Whenever enchanted creature deals damage to a creature, gain control of the other creature for as long as this Aura remains on the battlefield.

Enchant creature
When this Aura enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Cast this spell only if there are three or more players in the game.
Whenever a player casts a spell, each of that player's opponents may discard a card. If they do, counter that spell.

Red spells cost more to cast.

Enchant land
Whenever enchanted land becomes tapped, its controller mills three cards.

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

Enchant creature
When this Aura enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Enchant creature
Enchanted creature has phasing and can't be blocked except by Walls.

Enchant creature
Enchanted creature can't be blocked.

When this enchantment enters, it becomes an Aura with enchant creature. Manifest the top card of your library and attach this enchantment to it.
Enchanted creature has flying and hexproof.

Whenever a creature you control deals combat damage to an opponent, you may draw a card.

Domain — Creatures can't attack you unless their controller pays for each creature they control that's attacking you, where X is the number of basic land types among lands you control.

Enchant artifact or creature
Enchanted permanent doesn't untap during its controller's untap step.

Enchant creature
Enchanted creature has "Whenever this creature deals combat damage to a player, draw a card."
As long as enchanted creature is legendary, it gets +1/+1 and has ward .

Whenever a player casts a spell without asking your permission while casting it, counter that spell.
When a player asks you permission to cast a spell and you refuse, counter that spell and sacrifice Common Courtesy.

, Discard a card: Draw a card.
, Sacrifice this enchantment: Draw a card.