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

Whenever a creature enters, you lose 1 life and add {B}.

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.

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

When you cast this spell, you may return target creature card from your graveyard to the battlefield. Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents of their choice.)

When you cast this spell, draw four cards. Annihilator 4 (Whenever this creature attacks, defending player sacrifices four permanents of their choice.) When Kozilek is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.

Descend 8 — The Ancient One can't attack or block unless there are eight or more permanent cards in your graveyard. {2}{U}{B}: Draw a card, then discard a card. When you discard a card this way, target player mills cards equal to its mana value.

When you cast this spell, exile two target permanents. Indestructible Whenever Ulamog attacks, defending player exiles the top twenty cards of their library.

Each player mills two cards. Then you put a creature card from a graveyard onto the battlefield under your control.

Choose one or both — • Return target artifact card from your graveyard to your hand. • Return target creature card from your graveyard to your hand.

This spell costs {1} less to cast for each different mana value among cards in your graveyard. Whenever you discard a nonland card, you may cast it from your graveyard.

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.

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

Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Flash Flying Whenever an opponent draws their second card each turn, you draw a card. {3}{U}: Each player draws a card.

Cumulative upkeep {1} (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.) Whenever an opponent casts a noncreature spell, you may draw a card unless that player pays {4}.

Flash If an opponent would draw a card except the first one they draw in each of their draw steps, instead that player skips that draw and you draw a card.

{T}: Draw a card, then discard a card. {2}{U}{B}, {T}, Sacrifice this creature: Return target creature card from your graveyard to the battlefield.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

Target player draws two cards and loses 2 life.

At the beginning of your upkeep, draw a card. {T}: This artifact deals 1 damage to any target.

Target player mills two cards. Draw a card.

{T}: This creature deals 1 damage to any target and 1 damage to any target of an opponent's choice.

Untap this creature during each other player's untap step. {T}: This creature deals 1 damage to any target. {C}, {T}: Target creature can't attack or block this turn. {C}{C}, {T}: Draw a card.

At the beginning of the end step, if no creatures are on the battlefield, sacrifice this enchantment. {B}: This enchantment deals 1 damage to each creature and each player.

Flying {B}: This creature deals 1 damage to each creature and each player.

{T}: This creature deals 1 damage to any target.

{T}: This creature deals 1 damage to any target.

This creature can't be the target of red spells or abilities from red sources. {T}: This creature deals 1 damage to any target.

Flying {T}: This creature deals 1 damage to any target.

Choose one — • Regenerate each creature you control. • Wail of the Nim deals 1 damage to each creature and each player. Entwine {B} (Choose both if you pay the entwine cost.)

Each player mills ten cards. For each player, choose a creature or planeswalker card in that player's graveyard. Put those cards onto the battlefield under your control. Then each creature you control becomes a Phyrexian in addition to its other types.

Each player mills five cards. Flashback {7}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

At the beginning of each player's upkeep, that player mills X cards, where X is the number of cards in their hand.

{T}: Each player mills a card.