Keyword: Mill

Whenever an opponent loses life, that player mills that many cards. (Damage dealt by sources without infect causes loss of life.)

Defender
, : Target player mills X cards, where X is the number of creatures with defender you control.

Destroy target nonartifact creature. Its controller mills cards equal to that creature’s power.

Target player mills ten cards.

Flying
Whenever Shriekgeist deals combat damage to a player, that player mills two cards.

Target player mills two cards.
Draw a card.

Whenever Fleet Swallower attacks, target player mills half their library, rounded up.

Whenever Fleet Swallower attacks, target player mills half their library, rounded up.

Raid — At the beginning of your end step, if you attacked this turn, target opponent mills four cards.

If a player would draw a card except the first one they draw in each of their draw steps, that player discards a card instead. If the player discards a card this way, they draw a card. If the player doesn’t discard a card this way, they mill a card.

, : Target opponent mills a card, then repeats this process until a creature card or X cards have been put into their graveyard this way, whichever comes first. If one or more creature cards were put into that graveyard this way, sacrifice Helm of Obedience and put one of them onto the battlefield under your control. X can’t be 0.

+1: Create a 2/2 black Zombie creature token. Mill two cards.
−3: Return target creature card from your graveyard to the battlefield. That creature is a black Zombie in addition to its other colors and types.
−7: Destroy all non-Zombie creatures.

: Add .
, Pay 1 life: Add .
, , Sacrifice a Desert: Target player mills four cards.

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.

, , Discard a card: Target player mills three cards.

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.

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

Each player mills X cards. For each creature card put into a graveyard this way, you create a tapped 2/2 black Zombie creature token.

Flying
Whenever another creature leaves the battlefield, you may have target player mill two cards.
Unearth (: 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.)

Flying, trample
When Mindwrack Demon enters the battlefield, mill four cards.
Delirium — At the beginning of your upkeep, you lose 4 life unless there are four or more card types among cards in your graveyard.

Activated abilities of creature cards in your graveyard cost less to activate.
Tap an untapped Zombie you control: Target player mills a card.

Target player mills five cards.
Cycling (, Discard this card: Draw a card.)

+1: Create a 2/2 black Zombie creature token. Mill two cards.
−3: Return target creature card from your graveyard to the battlefield. That creature is a black Zombie in addition to its other colors and types.
−7: Destroy all non-Zombie creatures.

Return target nonland permanent to its owner’s hand. Each player mills two cards.

+1: Create a 2/2 black Zombie creature token. Mill two cards.
−3: Return target creature card from your graveyard to the battlefield. That creature is a black Zombie in addition to its other colors and types.
−7: Destroy all non-Zombie creatures.