msem-instigator

Lifelink
Outskirts Provider enters with a +1/+1 counter on it if a creature attacked this turn and wasn't blocked.

Hexproof
When Overburdened Trader enters, create three 1/1 colorless Construct artifact creature tokens.

When Overconfident Batter dies, if it's enchanted or you cast a spell that targeted it this turn, you gain 3 life.

Overgrown Siren must be blocked if able.

Trample
Overgrown Spellroot gets +1/+1 for each creature token you control.
When Overgrown Spellroot enters, create four 1/1 black Worm creature tokens.

When Overgrowth Guardian enters, germinate. (Put a +1/+1 counter on a creature or create a 1/1 green Saproling creature token.)

Flying
When Owl of the Seven Stars enters, scry 2.

Flash
Flying
Whenever you cast another spell with flash or an instant, conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)

{T}: Target player loses 1 life.
Whenever you cast a spell from your graveyard, untap Paincaller.

{1}, Discard a card: Painted Watcher gets +1/+1 and becomes the color of your choice until end of turn.

Cadence (Whenever you cast a spell, if its mana value is greater than this creature's power, put a +1/+1 counter on this creature.)
When Painwield Explorer dies, it deals damage equal to its power to target player or planeswalker.

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

Encourage ({T}: Another target creature you control gets +1/+1 until end of turn. Encourage only as a sorcery.)
Whenever Paladin's Attendant encourages a creature, that creature gains first strike until end of turn.

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.

Sacrifice a creature: Pale Horse gets +2/+2 until end of turn.
Ride {B} ({B}: Transform this and attach it to target creature you control without a Steed. Ride only as a sorcery.)

When Pale Night Remnants enters, return up to one target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.

Creatures you control with +1/+1 counters on them have haste and trample.
At the beginning of combat on your turn, target creature explores. (Reveal the top card of your library. Put it into your hand if it's a land. Otherwise, put a +1/+1 counter on that creature, then you may put that card into your graveyard.)

When Pantheon Breaker enters, each opponent sacrifices an enchantment.

Flash
As long as Panya and exactly one other creature are attacking, both have flying.

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.

{3}{W}{W}: Put a divinity counter on Paragon of Noon. It gains indestructible.
Whenever Paragon of Noon attacks, if it has a divinity counter on it, search your library for a creature card with mana value 1, put it onto the battlefield tapped and attacking, then shuffle.

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

Creatures your opponents control enter tapped.
{7}{W}: Tap all creatures target player controls.

Patent Thief gets +1/+1 and can't be blocked as long as an artifact was put into your graveyard from the battlefield this turn.

Patient Optimizer gets +4/+4 as long as it has four or more kinds of counters on it.
Whenever you draw your second card each turn, upgrade Patient Optimizer. (Give it one of the listed counters it doesn't already have.)
• +1/+1
• Flying
• Hexproof
• Prowess