Keyword: Mill

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

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

: Add .
, Pay 1 life: Add .
, , Sacrifice a Desert: Target player mills four cards. (They put the top four cards of their library into their graveyard.)

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. (To mill a card, a player puts the top card of their library into their graveyard.)

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.)

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

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.

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

At the beginning of your upkeep, put a +1/+1 counter on Necroplasm.
At the beginning of your end step, destroy each creature with mana value equal to the number of +1/+1 counters on Necroplasm.
Dredge 2 (If you would draw a card, you may mill two cards instead. If you do, return this card from your graveyard to your hand.)

, : Target player mills X cards, where X is the number of cards in that player’s graveyard.

When Minister of Inquiries enters, you get (two energy counters).
, Pay : Target player mills three cards.

: Add .
, , Sacrifice Sequestered Stash: Mill five cards. Then you may put an artifact card from your graveyard on top of your library.

First strike
When Combustible Gearhulk enters, target opponent may have you draw three cards. If the player doesn’t, you mill three cards, then Combustible Gearhulk deals damage to that player equal to the total mana value of those cards.

: Mill two cards.
, Exile Perpetual Timepiece: Shuffle any number of target cards from your graveyard into your library.

At the beginning of your upkeep, you may mill a card.
Delirium — , Sacrifice Crop Sigil: Return up to one target creature card and up to one target land card from your graveyard to your hand. Activate only if there are four or more card types among cards in your graveyard.

Mill three cards, then you may return a creature or land card from your graveyard to your hand. (To mill three cards, put the top three cards of your library into your graveyard.)

+1: Up to one target creature gets -2/-1 until your next turn.
−2: Mill two cards, then you may return a creature card from your graveyard to your hand.
−7: You get an emblem with “At the beginning of your end step, create X 2/2 black Zombie creature tokens, where X is two plus the number of Zombies you control.”

When Gisa and Geralf enters, mill four cards.
Once during each of your turns, you may cast a Zombie creature spell from your graveyard.

When Wailing Ghoul enters, mill two cards. (Put the top two cards of your library into your graveyard.)

When Laboratory Brute enters, mill four cards.

Target player mills three cards.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)