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.

Each player shuffles their hand and graveyard into their library, then draws seven cards. If it's your turn, end the turn. (Exile all spells and abilities from the stack, including this card. Discard down to your maximum hand size. Damage wears off, and "this turn" and "until end of turn" effects end.)

At the beginning of each player's end step, that player draws a card. If the player is your opponent and has four or more cards in hand, Fevered Visions deals 2 damage to that player.

{T}: Add {C}.

{2}, {T}: Each player draws a card, then discards a card.

+2: Each player draws a card.

-1: Target player draws a card.

-10: Target player mills twenty cards.

At the beginning of each player's draw step, that player draws an additional card.

Flying

Once during each of your turns, you may cast an instant or sorcery spell from your graveyard. If a spell cast this way would be put into your graveyard, exile it instead.

Counter target noncreature spell.

Flying

{T}: Add one mana of any color.

When Oubliette enters the battlefield, target creature phases out until Oubliette leaves the battlefield. Tap that creature as it phases in this way. (Auras and Equipment phase out with it. While permanents are phased out, they're treated as though they don't exist.)

Whenever a player draws a card, that player loses 2 life unless they pay {2}.

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

Deathtouch

Whenever you draw a card, you gain 2 life.

Whenever an opponent draws a card, they lose 2 life.

Each player draws X cards.

Forecast -- {2}{U}, Reveal Skyscribing from your hand: Each player draws a card. (Activate only during your upkeep and only once each turn.)

Whenever you draw a card, put a loyalty counter on Teferi, Temporal Pilgrim.

0: Draw a card.

-2: Create a 2/2 blue Spirit creature token with vigilance and "Whenever you draw a card, put a +1/+1 counter on this creature."

-12: Target opponent chooses a permanent they control and returns it to its owner's hand. Then they shuffle each nonland permanent they control into its owner's library.

{T}: Each player draws a card.

Destroy target creature. It can't be regenerated.

When Well of Ideas enters the battlefield, draw two cards.

At the beginning of each other player's draw step, that player draws an additional card.

At the beginning of your draw step, draw two additional cards.