msem-instigator

Flying
{2}{U}, {T}: Target creature gets +1/+1 and gains flying until end of turn. Activate only as a sorcery.

{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.

Prowess
Whenever you cast an instant or sorcery spell, if its mana value is less than or equal to Dwarven Twinslinger's power, copy that spell. You may choose new targets for the copy.

Dance of Dragons deals 4 damage divided as you choose among up to two targets. When one or more permanents dealt damage this way die this turn, draw a card. This ability triggers only once.
Showcase {5}{U}{R} (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.)

Deathtouch
When Deathbed Confessor enters, if it entered from a graveyard or you cast it from a graveyard, you draw two cards and you lose 2 life.

Flying
Other creatures you control with flying get +1/+0.

When Repurposed Custodian enters, shuffle any number of target cards from graveyards into their owner's libraries.

When Renatured Vines enters, draw a card and create a Vial token. (It's an artifact with “{1}, Sacrifice this and another permanent: Draw a card. Activate only during your turn.”)
Renatured Vines power and toughness are each equal to the number of cards in your hand.

{T}: Add {C}.
Satrapycycling {2} ({2}, Discard this card: Search your library for a Satrapy card, reveal it, put it into your hand, then shuffle.)

Enchant creature
Enchanted creature can't attack or block.
Enchanted creature has “{7}: Destroy Proselytize.”

This spell costs {1} less to cast if you have more life than an opponent and {1} less to cast if you control a Cleric.
Deathtouch

Search your library for an instant card or a card with flash, reveal it, put it into your hand, then shuffle.
Flashback {5}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Destroy target artifact and all other artifacts with the same name as that artifact.
Draw a card.

Create a 2/2 colorless Spirit creature token.
Draw a card.

Shimmer (Whenever this creature attacks, create a tapped and attacking token that's a copy of it. Exile the token at the beginning of the end step.)

Enchant player
When Curse of Nightmares enters, destroy target creature or planeswalker enchanted player controls.
Whenever enchanted player draws a card, they lose 1 life and you gain 1 life.

This spell can't be countered.
Protection from blue and from black (This creature can't be blocked, targeted, dealt damage, enchanted, or equipped by anything blue or black.)

Indestructible
When Reflected Worldwalker enters, each player puts their hand into their sideboard.

When Lammasu Roost enters, create a 2/2 blue Lammasu creature token with flying.
{3}{U}: Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Deception {1}{B}
When Aguri, Shadow of Doubt enters, target player reveals their hand. You choose a nonland card from it. That player discards that card. You lose 2 life.

Whenever you cast an instant or sorcery spell, you may copy it, and you may choose new targets for the copy. Do this only once each turn.
At the beginning of your end step, if Leyran Spellclaw didn't attack this turn, transform it.

Reach
Scarecrow spells you cast cost {1} less to cast.

When Killdrone Engineer enters, create a 1/1 colorless Servo artifact creature token.
Artifacts you control have deathtouch.

Whenever Ainok Caretaker or another Hound you control attacks, untap that creature and it gets +1/+1 until end of turn.

Lifelink
When Disciple of the Coil enters, choose one —
• You draw a card and you lose 2 life.
• Put a +1/+1 counter on target creature you control.