Macina

Suspend 4—{U} (Rather than cast this card from your hand, pay {U} and exile it with four time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)

Target player draws three cards.

Instant and sorcery spells you cast cost {1} less to cast.

Whenever a spell or ability you control counters a spell, you may draw a card. If you do, discard a card.

Target player mills five cards.

Cycling {U} ({U}, Discard this card: Draw a card.)

Consuming Aberration's power and toughness are each equal to the number of cards in your opponents' graveyards.

Whenever you cast a spell, each opponent reveals cards from the top of their library until they reveal a land card, then puts those cards into their graveyard.

Exile all creature cards from target player's graveyard. You gain 3 life for each card exiled this way.

Destroy all creatures. They can't be regenerated.

This land enters tapped.

When this land enters, you gain 1 life.

{T}: Add {U} or {B}.

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.

Target player mills ten cards.

Landfall — Whenever a land you control enters, target player mills three cards. (They put the top three cards of their library into their graveyard.)

({T}: Add {U}.)

[+1]: Draw a card. Target player mills a card.

[0]: Target player mills ten cards.

[−7]: Any number of target players each draw twenty cards.

Target opponent reveals cards from the top of their library until four land cards are revealed. That player puts all cards revealed this way into their graveyard.

Target opponent mills seven cards.

Instant and sorcery spells you cast cost {1} less to cast.

Whenever you cast an instant or sorcery spell, put a charge counter on this artifact. Then if there are four or more charge counters on it, you may remove those counters and transform it.

Counter target spell. Its controller mills two cards.

Target opponent mills thirteen cards.

{3}{U}{U}: Put this card from your graveyard onto the battlefield transformed. Activate only as a sorcery.

({T}: Add {B}.)

Target player mills five cards.

Choose a card name. Search target opponent's graveyard, hand, and library for up to four cards with that name and exile them. That player shuffles, then draws a card for each card exiled from their hand this way.