msem-instigator

Whenever you cast a noncreature spell, Prowling Frost-Tiger gets +1/+1 and gains hexproof until end of turn.

Target player reveals their hand. You choose a nonland card from it. That player discards that card. You lose 1 life.
Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

As long as your deck contains only green and colorless cards, your minimum deck size is reduced by eight.

Target player can't cast spells this turn.
Fabled {2}{W}{U} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that player.)

As Publishing Press enters, you may exile a nonland card with mana value 2 or less from your hand.
At the beginning of your upkeep, you may cast a copy of the exiled card without paying its mana cost if the spell's mana value is 2 or less.

Put target nonland permanent on the bottom of its owner's library. You gain life equal to the number of poison counters its owner has.

Destroy all creatures that aren't enchanted or equipped.

This spell costs {3} less to cast if a creature died this turn.
Put target creature card with mana value X from a graveyard onto the battlefield under your control.

Enchant creature
{U}: Tap enchanted creature.
{1}{U}: Untap enchanted creature and gain control of it until end of turn.

Choose one —
• Purging Light deals 3 damage to target attacking or blocking creature. If that creature would die this turn, exile it instead.
• Exile target enchantment.

{1}{G}: Purge. If you do, put a +1/+1 counter on Purging Watchwarden and you gain 2 life. (To purge, exile two cards that share a type from graveyards. If you do, draw a card.)

Indestructible
As long as your devotion to red is less than five, Purphoros isn't a creature.
Whenever you attack, Purphoros deals 1 damage to any target.
{3}{R}: Discard up to two cards, then draw that many cards.

At the beginning of your end step, you get a perfection counter. Create a token that's a copy of up to one other target creature you control, then exile that token unless you have six or more perfection counters.

Deathtouch
Putrid Lurker can't block.
Whenever you discard Putrid Lurker or another card, you may pay {B}. If you do, return Putrid Lurker from your graveyard to the battlefield.

If you would draw a card, you may instead reveal cards from the top of your library until you reveal an enchantment card. Put that card into your hand. Put the rest on the bottom of your library in a random order.
{3}, {T}: You may cast an enchantment spell from your hand without paying its mana cost or activate a submodule of a permanent you control without paying its activation cost.

Flash
When Pyramid Lord enters, copy target instant or sorcery spell. You may choose new targets for the copy.
Mirage {1}{R}{R} (You may cast this spell for its mirage cost. If you do, sacrifice it at the beginning of the next cleanup step.)

Choose one —
• You may sacrifice a creature. When you do, it deals damage equal to its power to any target.
• Target creature gets +4/+4 and gains trample until end of turn.
• Destroy target artifact.

{T}: Pyrespike Familiar deals 1 damage to target player or planeswalker.
Menagerie — As long as there are five or more creature types among creatures you control, if a red source you control would deal damage, it deals that much damage plus 1 instead.

You may pay {1}{R}{R} and exile a red card from your hand rather than pay this spell's mana cost.
Pyretic Cyclone deals 3 damage to each creature.

Mill three cards. Pyromancer's Fury deals damage to any target equal to the number of instant and sorcery cards in your graveyard.

Choose one —
• Target creature gets +4/+2 until end of turn.
• Pyromantic Expertise deals 4 damage to target creature or planeswalker.

Pyrostorm deals 10 damage divided as you choose among any number of targets.

Flying, haste
Whenever Pyrus, the Undying Flame attacks, add {R}{R}{R}{R}. You don't lose this mana as steps, phases, and turns end.
{1}{R}: Pyrus gets +1/+0 until end of turn.

Archive 5 (As this enters, shuffle the top five cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
At the beginning of each upkeep, exile the top card of the archived library and your main library. You may cast those cards this turn and may spend mana as though it were mana of any color to cast them.

[+1]: Exile the top card of your library. When a source you control deals damage to an opponent this turn, put the exiled card into your hand.
[–2]: Exile target nonland permanent. Its controller reveals the top card of their library, then puts it onto the battlefield if it's a permanent card.
[–6]: Exile your library. You may play cards exiled this way for the rest of the game.