msem-instigator

Enchant player
Whenever Curse of the Tattletale or another Curse becomes attached to enchanted player, each of their opponents draws a card.

Enchant player
When Curse of the Breathless enters, create a 1/1 white Spirit creature token with flying for each Curse attached to enchanted player.
Whenever another Curse becomes attached to enchanted player, create a 1/1 white Spirit creature token with flying.

Enchant player
When Curse of Scuttling Thoughts enters, create a 0/3 blue Crab creature token with “{T}: Target player mills a card.”
If enchanted player would mill one or more cards, they mill twice that many cards instead.

Flash
Enchant player
When Curse of Doubt enters, counter target spell enchanted player controls unless they pay {2}.
{4}{U}: Enchanted player mills three cards.

Whenever Conjured Stalker attacks, you may draw a card. If you do, discard a card.

Invocation — When you spend four or more mana to cast a spell or activate an ability during your turn, transform Corrupted Sorcerer.

Return up to one target nonland permanent you control and up to one target nonland permanent you don't control to their owners' hands.
Flashback {4}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flying
When Carrion Drake enters, you may exile a creature card from your graveyard. If you do, draw a card.

Invocation — Whenever you spend four or more mana to cast a spell or activate an ability during your turn, Brine Cultist can't be blocked this turn.
{5}{U}: Draw a card.

Braineater Abominus can't be blocked by creatures with power 4 or greater.
Whenever a creature you control deals combat damage to a player, exile the top card of that player's library. You may play that card for as long as it remains exiled, and you may spend mana as though it were mana of any type to cast it.

Until end of turn, target creature you control gains hexproof and has base power and toughness 4/4. (It can't be the target of spells or abilities your opponents control.)
Draw a card.

When Weizenmother enters, return target creature card with mana value 3 or less from your graveyard to the battlefield.
Plainscycling {2} ({2}, Discard this card: Search your library for a Plains card, reveal it, put it into your hand, then shuffle.)

First strike
Angel spells you cast cost {2} less to cast.
As long as you control an Angel, prevent all noncombat damage that would be dealt to Traft, Lunarch's Edge.

Flash
When Thraben Redeemer enters, choose up to one target permanent card in your graveyard that was put there from the battlefield this turn. Return it to your hand.

When Sword of the Heavens enters, attach it to target creature you control.
Equipped creature gets +2/+2 and has flying, vigilance, and “Whenever this creature attacks, you may search your library and/or graveyard for an Aura or Equipment card, reveal it, put it into your hand, then shuffle.”
Equip {3}

Enchant creature or planeswalker
Enchanted permanent can't attack, block, or transform, and its activated abilities can't be activated.

Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)
Whenever Stalwart Cathar and at least two other creatures attack, Stalwart Cathar gets +2/+0 until end of turn. Untap it.

Spectral Salvo deals 13 damage to target tapped creature. Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

When Slayer's Grimoire enters, exile target non-Human creature an opponent controls until Slayer's Grimoire leaves the battlefield.
{2}{W}, {T}: You gain 2 life.

First strike
Whenever Silverblade Cathar and at least two other creatures attack, draw a card.

Flying
When Sigarda's Shepherd enters, another target creature you control gets +1/+1 and gains indestructible until end of turn.

Exile target artifact, creature, or enchantment. If that permanent's mana value was 3 or greater, its controller may search their library for a basic land card, put it onto the battlefield tapped, then shuffle. (A transformed permanent retains the mana value of its front face.)

Other Humans you control get +1/+1.
Whenever Righteous Chaplain or another Human you control enters, tap target creature an opponent controls.

At the beginning of your end step, put a creature card that's exiled with this enchantment onto the battlefield under your control. That creature becomes a 1/1 Spirit creature in addition to its other types and gains flying and “If this creature would die, put it on the bottom of its owner's library instead.”

When Resting Tombs enters, exile target creature an opponent controls until this enchantment leaves the battlefield.
If a creature would die, exile it instead.
{3}{B}{B}: Exile all creature cards from all graveyards. Transform Resting Tombs. Activate only as a sorcery.