Commander creatures you own have "Whenever this creature becomes tapped, it and other creatures you control that share a creature type with it each get +2/+0 and gain undying until end of turn." (When a creature with undying dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)

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

{T}: Add {C}. {2}, {T}, Sacrifice this land: Destroy target nonbasic land an opponent controls. That land's controller may search their library for a basic land card, put it onto the battlefield, then shuffle. You may search your library for a basic land card, put it onto the battlefield, then shuffle.

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

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

({T}: Add {U}.)

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.

{T}: Add {C}. {1}, {T}: Add one mana of any color in your commander's color identity. If you spend this mana to cast your commander, it enters with a number of additional +1/+1 counters on it equal to the number of times it's been cast from the command zone this game.

This land enters tapped. {T}: Add {U}. {3}{U}{B}{B}, {T}, Sacrifice this land: Mill four cards, then return a creature card from your graveyard to the battlefield tapped. (To mill a card, put the top card of your library into your graveyard.)

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

{T}: Add {C}. {1}{U}, {T}: Return target Wizard you control to its owner's hand.

{T}: Add {U}. If you played a land this turn, add {B} instead.

{T}: Add {C}. {2}, {T}, Sacrifice a Desert: Exile all graveyards.

This land enters tapped. {T}: Add {U} or {B}. {4}, {T}: Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")

({T}: Add {U} or {B}.) This land enters tapped unless you control two or more basic lands.

Remove all counters from all permanents and exile all tokens.

For each attacking creature, its owner puts it on their choice of the top or bottom of their library.

When this creature enters, if you cast it from your hand, return all permanents to their owners' hands except for Giants, Wizards, and lands.

Return all creatures to their owners' hands.

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

Enchant creature, land, or planeswalker Enchanted permanent is a colorless land with "{T}: Add {C}" and loses all other card types and abilities.

Exile target artifact or creature. Its controller creates a 1/1 blue Bird creature token with flying. Foretell {U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Exile target artifact or creature. Its controller creates a 4/4 blue and red Elemental creature token.

{B}, Remove X +1/+1 counters from among creatures you control: Target creature gets -X/-X until end of turn.

Search the Room — {5}{U}: Roll a d20. 1—9 | Draw a card. 10—20 | Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

You may choose not to untap this creature during your untap step. {2}{U}, {T}: Target Wizard creature gets +2/+2 and has shroud for as long as this creature remains tapped. (It can't be the target of spells or abilities.)

Equipped creature gets +1/+0 and has haste and ward {1}. (Whenever it becomes the target of a spell or ability an opponent controls, counter it unless that player pays {1}.) Equip {1}

Flash When this creature enters during the declare attackers step, you may reselect which player or permanent target attacking creature is attacking. (It can't attack its controller or their permanents.)

Target creature you control gets +1/+1 and gains hexproof until end of turn. Untap it. (It can't be the target of spells or abilities your opponents control.)

Equipped creature gets +0/+6. Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery. This card enters unattached and stays on the battlefield if the creature leaves.)

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

Tap an untapped Wizard you control: Draw a card.

{3}{U}: Draw a card.

Scry 2, then draw two cards. Foretell {1}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

Target creature becomes blue until end of turn. Untap that creature. Draw a card.

When this creature enters, you may draw cards equal to its power. If you do, discard two cards. Eternalize {5}{U}{U} ({5}{U}{U}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a 4/4 black Zombie Snake Wizard with no mana cost. Eternalize only as a sorcery.)

Target player draws two cards. Flashback—{1}{U}, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

({U/B} can be paid with either {U} or {B}.) {3}{U}: Target player draws a card. Activate only as a sorcery. {3}{B}: Target player discards a card. Activate only as a sorcery.

Equipped creature has "Whenever you draw a card, this creature gets +1/+1 and gains flying until end of turn" and "{4}: Draw a card." Whenever a Wizard creature enters, you may attach this Equipment to it. Equip {3}

Play with the top card of your library revealed. You may play lands and cast spells from the top of your library.

Skulk (This creature can't be blocked by creatures with greater power.) This creature enters with X +1/+1 counters on it. At the beginning of your upkeep, if this creature has one or more +1/+1 counters on it, you may remove a +1/+1 counter from it. If you do, draw a card.

Play with the top card of your library revealed. You may play lands and cast spells from the top of your library.

Look at the top X cards of your library, where X is the amount of mana spent to cast this spell. Put two of them into your hand and the rest on the bottom of your library in a random order. Flashback {5}{U}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

{3}{U}{U}: Draw two cards.

{2}{U}{U}, {T}: Draw a card for each Wizard you control.

Whenever equipped creature deals combat damage to a player, you draw that many cards. Equip {4} Equip Shaman, Warlock, or Wizard {1}

Each other Wizard creature you control enters with an additional +1/+1 counter on it. {2}, Remove a +1/+1 counter from a creature you control: Draw a card.

Scry 2, then draw a card. Flashback {4}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

{T}, Remove a counter from an artifact, creature, land, or planeswalker you control: Draw a card.

{7}: Draw two cards.

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.

Hideaway 4 (When this creature enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) This creature enters tapped. When this creature leaves the battlefield, put the exiled card into its owner's hand.

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

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

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

Until end of turn, whenever a player taps an Island for mana, that player adds an additional {U}.

Blue creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, target creature an opponent controls doesn't untap during its controller's next untap step.

{T}: Add {C}{U}. Spend this mana only to activate abilities.

{T}: Add {C}. Spend this mana only to cast a colorless spell or to activate an ability.

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

Islandwalk (This creature can't be blocked as long as defending player controls an Island.) Merfolk spells and Wizard spells you cast cost {1} less to cast.

Choose artifact, creature, or land. Tap all untapped permanents of the chosen type target player controls, or untap all tapped permanents of that type that player controls.

Return two target creatures to their owners' hands. Wizardcycling {2} ({2}, Discard this card: Search your library for a Wizard card, reveal it, put it into your hand, then shuffle.)

Mage Hand — {T}: Untap target permanent not named Clever Conjurer. Activate only as a sorcery.

Untap all nonland permanents you control.

{T}: You may tap or untap another target permanent. Unearth {U} ({U}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Untap target creature. Draw a card.