Whenever a player casts a spell from their hand, that player exiles it, then exiles cards from the top of their library until they exile a card that shares a card type with it. That player may cast that card without paying its mana cost. Then they put all cards exiled with Possibility Storm on the bottom of their library in a random order.

At the beginning of your upkeep, you may put a fuse counter on Powder Keg.

, Sacrifice Powder Keg: Destroy each artifact and creature with mana value equal to the number of fuse counters on Powder Keg.

Equipped creature has trample and "Whenever this creature deals combat damage to a player, put that many +1/+1 counters on it."

Equip

At the beginning of each player's upkeep, Power Surge deals X damage to that player, where X is the number of untapped lands they controlled at the beginning of this turn.

Whenever a creature attacks or blocks, Powerstone Minefield deals 2 damage to it.

Deathtouch

Curse of the Walking Pox — Whenever you cast a spell from anywhere other than your hand, return Poxwalkers from your graveyard to the battlefield tapped.

(: Add or .)

Prairie Stream enters the battlefield tapped unless you control two or more basic lands.

Deathtouch

Whenever Preacher of the Schism attacks the player with the most life or tied for most life, create a 1/1 white Vampire creature token with lifelink.

Whenever Preacher of the Schism attacks while you have the most life or are tied for most life, you draw a card and you lose 1 life.

At the beginning of your upkeep, you may look at the top card of target opponent's library. If you do, you may put that card on the bottom of that player's library.

Draw three cards.

Addendum — If you cast this spell during your main phase, instead scry 3, then draw three cards.

Flying, haste

Devour 2 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with twice that many +1/+1 counters on it.)

: Target creature gains flying until end of turn.

, : Destroy target creature with flying.

At the beginning of each opponent's end step, if that player didn't cast a creature spell this turn, create a 2/2 green Lizard creature token.

Menace

As Predatory Sludge enters the battlefield, choose a permanent you don't control. When the chosen permanent is put into a graveyard from the battlefield, conjure a card named Predatory Sludge into your hand.

First strike (This creature deals combat damage before creatures without first strike.)

Whenever Preeminent Captain attacks, you may put a Soldier creature card from your hand onto the battlefield tapped and attacking.

Untap target creature. It gets +2/+2 and gains lifelink until end of turn.

Whenever another nontoken creature enters the battlefield under your control, if it wasn't cast, create a token that's a copy of that creature, except it's a 0/1 white Illusion.

, Sacrifice five Illusions: Exile target nonland permanent.

Flying

Devour 2 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with twice that many +1/+1 counters on it.)

Whenever Preyseizer Dragon attacks, it deals damage to any target equal to the number of +1/+1 counters on Preyseizer Dragon.

Flying

Pride of the Clouds gets +1/+1 for each other creature on the battlefield with flying.

Forecast — , Reveal Pride of the Clouds from your hand: Create a 1/1 white and blue Bird creature token with flying. (Activate only during your upkeep and only once each turn.)

, Pay 3 life, Sacrifice Priest of Fell Rites: Return target creature card from your graveyard to the battlefield. Activate only as a sorcery.

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.)

At the beginning of your end step, create X 1/1 white Spirit creature tokens with flying, where X is the number of opponents who control more lands than you.

At the beginning of your upkeep, you may reveal a Dinosaur card from your hand. If you do, you gain 2 life.

, Sacrifice Priest of the Wakening Sun: Search your library for a Dinosaur card, reveal it, put it into your hand, then shuffle.

As Primal Beyond enters the battlefield, you may reveal an Elemental card from your hand. If you don't, Primal Beyond enters the battlefield tapped.

: Add .

: Add one mana of any color. Spend this mana only to cast an Elemental spell or activate an ability of an Elemental.

Choose two —

• Target player gains 7 life.

• Put target noncreature permanent on top of its owner's library.

• Target player shuffles their graveyard into their library.

• Search your library for a creature card, reveal it, put it into your hand, then shuffle.

At the beginning of each player's upkeep, Primal Order deals damage to that player equal to the number of nonbasic lands they control.

If one or more tokens would be created, twice that many of those tokens are created instead.

If one or more +1/+1 counters would be put on a creature, twice that many +1/+1 counters are put on that creature instead.

Primal Whisperer gets +2/+2 for each face-down creature on the battlefield.

Morph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Primaris Eliminator enters the battlefield, choose one —

• Executioner Round — Destroy target creature.

• Hyperfrag Round — Creatures target player controls get -2/-2 until end of turn.

When Primeval Force enters the battlefield, sacrifice it unless you sacrifice three Forests.

If Primeval Spawn would enter the battlefield and it wasn't cast or no mana was spent to cast it, exile it instead.

Vigilance, trample, lifelink

When Primeval Spawn leaves the battlefield, exile the top ten cards of your library. You may cast any number of spells with total mana value 10 or less from among them without paying their mana costs.

Reveal the first card you draw each turn. Whenever you reveal a creature card this way, draw a card.

Whenever you cast a creature spell, you may draw a card.

Converge — Prism Array enters the battlefield with a crystal counter on it for each color of mana spent to cast it.

Remove a crystal counter from Prism Array: Tap target creature.

: Scry 3.

Prismatic Geoscope enters the battlefield tapped.

Domain — : Add X mana in any combination of colors, where X is the number of basic land types among lands you control.

Lands you control are every basic land type in addition to their other types.

Each opponent secretly chooses silence or snitch, then the choices are revealed. If each opponent chose silence, Prisoner's Dilemma deals 4 damage to each of them. If each opponent chose snitch, Prisoner's Dilemma deals 8 damage to each of them. Otherwise, Prisoner's Dilemma deals 12 damage to each opponent who chose silence.

Flashback

Flying

Whenever you cast a noncreature spell, untap Pristine Skywise. It gains protection from the color of your choice until end of turn.

Whenever you gain life, put that many ribbon counters on Prize Pig. Then if there are three or more ribbon counters on Prize Pig, remove those counters and untap it.

: Add one mana of any color.

Return up to three target creature cards with mana value 1 or less from your graveyard to the battlefield.

Forecast — , Reveal Proclamation of Rebirth from your hand: Return target creature card with mana value 1 or less from your graveyard to the battlefield. (Activate only during your upkeep and only once each turn.)

Choose two —

• Target player loses X life.

• Return target creature card with mana value X or less from your graveyard to the battlefield.

• Target creature gets -X/-X until end of turn.

• Up to X target creatures gain fear until end of turn. (They can't be blocked except by artifact creatures and/or black creatures.)

Suspend 2— (Rather than cast this card from your hand, pay and exile it with two 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.)

Search your library for a card, put that card into your hand, then shuffle.

Menace

Whenever one or more creatures you control deal combat damage to a player, create a Treasure token.

Sacrifice a Treasure: Exile the top card of your library. You may play that card this turn.

When Proft's Eidetic Memory enters the battlefield, draw a card.

You have no maximum hand size.

At the beginning of combat on your turn, if you've drawn more than one card this turn, put X +1/+1 counters on target creature you control, where X is the number of cards you've drawn this turn minus one.

You may have Progenitor Mimic enter the battlefield as a copy of any creature on the battlefield, except it has "At the beginning of your upkeep, if this creature isn't a token, create a token that's a copy of this creature."

Flying

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

Whenever Prognostic Sphinx attacks, scry 3.

When a creature you control dies, sacrifice Promise of Bunrei. If you do, create four 1/1 colorless Spirit creature tokens.

Choose one —

• You draw five cards and you lose 5 life.

• Create an X/X black Demon creature token with flying, where X is the number of cards in your hand.

Entwine (Choose both if you pay the entwine cost.)

Whenever a creature you control dies, you gain life equal to that creature's toughness.

Prophetic Bolt deals 4 damage to any target. Look at the top four cards of your library. Put one of those cards into your hand and the rest on the bottom of your library in any order.

When Prosperous Partnership enters the battlefield, create two 1/1 green and white Citizen creature tokens.

Tap three untapped creatures you control: Create a Treasure token.