, , Discard a card: Untap target creature and gain control of it until end of turn. That creature gains haste until end of turn.

Flying

When Owl Familiar enters the battlefield, draw a card, then discard a card.

If one or more +1/+1 counters would be put on an artifact or creature you control, that many plus one +1/+1 counters are put on it instead.

, : Put a +1/+1 counter on target artifact or creature you control. Activate only as a sorcery.

Cycling (, Discard this card: Draw a card.)

Pack Rat's power and toughness are each equal to the number of Rats you control.

, Discard a card: Create a token that's a copy of Pack Rat.

Target player discards a card.

Whenever an opponent casts a spell, that player loses 5 life unless they discard a card.

Skulk (This creature can't be blocked by creatures with greater power.)

When Pale Rider of Trostad enters the battlefield, discard a card.

Discard a card at random: Pardic Lancer gets +1/+0 and gains first strike until end of turn.

Discard a card: Regenerate Patchwork Gnomes. (The next time this creature would be destroyed, instead tap it, remove it from combat, and heal all damage on it.)

Discard a card: Patrol Hound gains first strike until end of turn.

, Discard a card: Create a 1/1 white Pegasus creature token with flying.

Flying

Cycling (, Discard this card: Draw a card.)

Choose a color. Target player reveals their hand and discards all cards of that color.

Destroy all nonland permanents with mana value 1 or less.

Cycling (, Discard this card: Draw a card.)

When you cast this spell, any player may discard three cards. If a player does, counter Phantasmagorian.

Discard three cards: Return Phantasmagorian from your graveyard to your hand.

Double strike

When Phyrexian Dragon Engine enters the battlefield from your graveyard, you may discard your hand. If you do, draw three cards.

Unearth

(Melds with Mishra, Claimed by Gix.)

Target opponent reveals their hand. You choose a nonland card from it. That player discards that card.

Flying

, , Sacrifice Pilfering Imp: Target opponent reveals their hand. You choose a nonland card from it. That player discards that card. Activate only as a sorcery.

Whenever equipped creature attacks, choose one —

• Sort Inventory — Draw a card, then discard a card.

• Pick a Perk — Put a +1/+1 counter on that creature.

• Check Map — Untap up to two target lands.

Equip

Equipped creature gets +1/+1 and has "Whenever this creature attacks, draw a card, then discard a card."

Equip Pirate

Equip (: Attach to target creature you control. Equip only as a sorcery.)

Defender (This creature can't attack.)

Whenever you discard a card, you may sacrifice Pitchstone Wall. If you do, return the discarded card from your graveyard to your hand.

At the beginning of your end step, sacrifice each other creature you control.

Discard two cards, Sacrifice Plague Reaver: Choose target opponent. Return Plague Reaver to the battlefield under that player's control at the beginning of their next upkeep.

When Plaguecrafter enters the battlefield, each player sacrifices a creature or planeswalker. Each player who can't discards a card.

2 — : Draw a card, then discard a card.

4 — Whenever this creature attacks, you gain 3 life and draw a card.

2 — 1/5

3 — 4/4

When Poet's Quill enters the battlefield, learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

Equipped creature gets +1/+1 and has lifelink.

Equip

Polluted Mire enters the battlefield tapped.

: Add .

Cycling (, Discard this card: Draw a card.)

When Polygraph Orb enters the battlefield, look at the top four cards of your library. Put two of them into your hand and the rest into your graveyard. You lose 2 life.

, , Collect evidence 3: Each opponent loses 3 life unless they discard a card or sacrifice a creature. (To collect evidence 3, exile cards with total mana value 3 or greater from your graveyard.)

Draw a card.

Learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

If a player would draw a card, that player skips that draw instead.

At the beginning of each end step, each player sacrifices a permanent unless they discard a card.

Each player loses a third of their life, then discards a third of the cards in their hand, then sacrifices a third of the creatures they control, then sacrifices a third of the lands they control. Round up each time.

Target creature gets +4/+4 until end of turn.

Cycling (, Discard this card: Draw a card.)

When you cycle Primal Boost, you may have target creature get +1/+1 until end of turn.

Choose two —

• Prismari Command deals 2 damage to any target.

• Target player draws two cards, then discards two cards.

• Target player creates a Treasure token.

• Destroy target artifact.

When Professor of Symbology enters the battlefield, learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.)

Flying

Discard a card: Prognostic Sphinx gains hexproof until end of turn. Tap it.

Whenever Prognostic Sphinx attacks, scry 3.

Enchant creature

Enchanted creature has haste and ", Discard a card: Draw a card."

Flash

When Psionic Snoop enters the battlefield, it connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

Target player discards a card. If a land card is discarded this way, return Psychic Miasma to its owner's hand.

When Psychic Pickpocket enters the battlefield, it connives. When it connives this way, return up to one target nonland permanent to its owner's hand. (To have a creature connive, draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.)

Target player reveals their hand. You choose a Spirit or Arcane card from it. That player discards that card.

Cumulative upkeep—Draw a card. (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.)

At the beginning of your end step, sacrifice a land and discard your hand.

Psychotic Haze deals 1 damage to each creature and each player.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Clash with an opponent. If you win, target player discards two cards. Otherwise, that player discards a card. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)

Target player reveals three cards from their hand and you choose one of them. That player discards that card. Then if that player has more cards in hand than you, return Pulse of the Dross to its owner's hand.

Whenever a spell or ability an opponent controls causes you to discard cards this turn, return those cards from your graveyard to your hand.

When a spell or ability an opponent controls causes you to discard Pure Intentions, return Pure Intentions from your graveyard to your hand at the beginning of the next end step.

Attacking creatures get +2/+0 until end of turn.

Cycling (, Discard this card: Draw a card.)

Discard a card: Putrid Imp gains flying until end of turn.

Threshold — As long as seven or more cards are in your graveyard, Putrid Imp gets +1/+1 and can't block.

Discard a land card: Pyre of the World Tree deals 2 damage to any target.

Whenever you discard a land card, exile the top card of your library. You may play that card this turn.

Bloodrush — , Discard Pyrewild Shaman: Target attacking creature gets +3/+1 until end of turn.

Whenever one or more creatures you control deal combat damage to a player, if Pyrewild Shaman is in your graveyard, you may pay . If you do, return Pyrewild Shaman to your hand.

, Discard a card at random: Pyromancy deals damage to any target equal to the mana value of the discarded card.

Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)

Shroud (This creature can't be the target of spells or abilities.)

When a spell or ability an opponent controls causes you to discard Quagnoth, return it to your hand.