msem-instigator

Enchant creature
When Pursued Paranoia enters the battlefield, scry 1.
Enchanted creature can't block.

Enchant nonland permanent
Enchanted permanent can't attack and its activated abilities can't be activated.

Renown 1 (When this creature deals combat damage to a player, if it isn't renowned, put a +1/+1 counter on it and it becomes renowned.)
Rafter Stalker can't be blocked by creatures with greater power.

Flash
When Rahit's Prodigy enters the battlefield, return target instant or sorcery card from your graveyard to your hand, then discard a card.

Archive 5 (As this enters the battlefield, 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 your upkeep, put the top card of any of your libraries on the bottom of the archived library, then you may put any card in the archived library on top of the archived library.

[+1]: For each player, exile the top three cards of that player's library, then put one of those cards into that player's hand.
[0]: Choose target card exiled by Rahit. Until your next turn, you may play that card, and you may spend mana as though it was mana of any type to cast it.
[–7]: Target player draws seven cards.

[+1]: Each player may draw a card. For each opponent who does, put a loyalty counter on Rahit.
[–1]: Each player draws three cards, then puts two cards from their hand on top of their library in any order.
[–6]: You get an emblem with “Discard a card with mana value X: Counter target spell with mana value X or less.”

Create two 1/1 red Soldier creature tokens with haste.

Equipped creature has “Whenever this creature attacks, untap each other creature you control.”
Equip {3}

({T}: Add {R} or {G}.)
Whenever Rampant Summit becomes tapped, you lose 1 life unless you control two or more basic lands.

Target creature you control gets +1/+1 and gains hexproof until end of turn. (That creature can't be the target of spells or abilities your opponents control.)

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
Infiltrate (Whenever one or more attacking creatures you control aren't blocked, this creature gets +1/+1 until end of turn.)

Equipped creature is a Flagbearer in addition to its other types.
While an opponent is choosing targets as part of casting a spell they control or activating an ability they control, that player must choose at least one Flagbearer on the battlefield if able.
Equip {5}

Tap X untapped Shamans you control: Ravik, Still-Smoke Seer deals X damage to any target and you gain X life.

Reveal the top five cards of your library. You may put a creature or Equipment card revealed this way into your hand. Then put the rest on the bottom of your library in any order.

Knight creatures you control have vigilance.
{2}{G}{W}: Put a +1/+1 counter on each creature you control.

Counter target spell unless its controller pays {1}. If they do, draw a card.

{T}, Sacrifice a land: Untap up to three target lands.

Starting with you, each player either passes or reveals the top card of their library. Each player that revealed a card this way pays life equal to its mana value. If a player can't, that player passes. Then each player who hasn't passed yet puts that card into their hand. Repeat this process until each player has passed.

{2}{B}{B}, Exile Reclusive Augur from your graveyard: Return another target creature card from your graveyard to the battlefield. Activate only during your turn.

When Recollection Revelation enters the battlefield, rouse 1. (Put a +1/+1 counter on a permanent you control. If it isn't a creature, tap it and it becomes a 0/0 creature in addition to its other types.)
{1}{W}, Sacrifice Recollection Revelation: Return another target artifact or enchantment card from your graveyard to your hand.

Trample, haste
When Red Pelt Hart deals combat damage to a player, return it to its owner's hand.
At the beginning of your end step, sacrifice Red Pelt Hart.

Target player sacrifices a creature. Then you gain 3 life if that player doesn't control any creatures.

Enchant creature
Enchanted creature gets +2/+2 for each other enchantment you control.

At the beginning of your upkeep, return target enchantment card from your graveyard to your hand.
Whenever Reflect on Serenity or another enchantment you control enters or leaves the battlefield, each opponent loses 1 life and you gain 1 life.