msem-instigator

Put a porcelain counter on each of up to one target creature and up to one target artifact. They become 3/3 colorless artifact creatures and lose all abilities.

Whenever a creature dies, Pakka, the Shadowcloak deals 1 damage to each opponent.

{2/W}, {T}: Tap target creature.

Flying

When Palace Vanguard enters, choose one —
• Create a 1/1 blue Bird creature token with flying.
• Create a 2/2 white Cat creature token.

Flying
Whenever Pale Courier deals combat damage to a player, it voyages. (If it isn't blocking or targeted by another spell or ability, it phases out.)
Whenever Pale Courier phases in, create a 1/1 white Dwarf creature token.

Other creatures you control get +1/+0.
{R}{W}: Create a 1/1 red and white Warrior creature token. That token gains haste. Exile it at the beginning of the next end step. Activate only as a sorcery.

{G/U}: Pangoling gains hexproof until end of turn.
{G/U}: Move a counter from target creature you control onto Pangoling.
{G/U}: Whenever Pangoling deals combat damage to a player this turn, draw a card. Activate only once each turn.
{1}: Pangoling gets +1/-1 or -1/+1 until end of turn.

{T}: Add {G}.
{T}: Add {W}, {U}, {R}, or {B}. Spend this mana only to cast a multicolored spell.

Whenever Panya attacks, you may put an escapade counter on her, then you may cast an instant or sorcery card from your hand with mana value equal to the number of escapade counters on Panya without paying its mana cost.
{1}{U}: Panya gains flying until end of turn.

Exile target creature. If you controlled that creature, create a 4/4 red Dragon creature token with flying. Otherwise, its controller creates a 1/1 white Bird creature token with flying.
Showcase {4}{U} (Then if you cast this for its showcase cost, create a 1/1 red Bard creature token that can't block and exile this. Whenever it attacks, you may cast a free copy of this.)

When Paralysis Specialist enters, up to two target creatures don't untap during their controller's next untap step.

Parasol Twirler has flying as long as you control an artifact.

Prismatic — Whenever you cast a multicolored spell, create a 1/1 blue Bird creature token with flying. It gains haste until end of turn.
Whenever three or more creatures you control deal combat damage to a player, draw a card.

When Parrying Scholar enters, target creature gets +0/+3 until end of turn.

(Choose only one work as a sorcery to add its ability.)
When Path of the Outsider enters, return target creature to its owner's hand, then each opponent sacrifices a creature.
{2}{U}: Evanescence
{0}: Target creature phases out. Activate only during your turn and only once each turn.
{2}{B}: Anguish
Whenever a creature attacks you, it gets -1/-1 until end of turn.

Enchant opponent
When Pathless Shallows enters, exile target creature enchanted player controls until Pathless Shallows leaves the battlefield.
Enchanted player can't cast spells with the same name as the exiled card.

Whenever an opponent casts a spell, sacrifice Patient Orchestration. If you do, look at the top X cards of your library, where X is that spell's mana value. Put up to two of them into your hand and the rest on the bottom of your library in any order.

Whenever Patron of Asham attacks, tap target creature an opponent controls with power less than or equal to your fealty to Plains. (Each Plains you control counts towards your fealty to Plains.)

Gain control of up to two target creatures or planeswalkers until end of turn. Untap them. They gain haste until end of turn. Pay the Right Price deals 3 damage to each of them at the beginning of the next end step.

(Choose only one work as a sorcery to add its ability.)
When Peacetime Murals enters, draw three cards and you gain 3 life.
{2}{G}: Grow as Two
Whenever you activate an ability of a creature you control, create a token that's a copy of that creature except it isn't legendary. This ability triggers only once each turn.
{2}{U}: A Better Mankind
Whenever a creature you control enters, you may activate one of its abilities without paying its costs. This ability triggers only once each turn.

Flying

Peasant Crusher can't be blocked by creatures with power 1 or less.

{G}, Discard a noncreature card: Reveal the top five cards of your library. You may put a creature card with mana value X or less from among them into your hand, where X is the discarded card's mana value plus one. Put the rest on the bottom of your library in any order.

When Peddler of Commonwares enters, you may draw a card. If you do, discard a card.