msem-instigator

Return X target cards with different mana costs from your graveyard to your hand. Exile Eternal Blessings.

{T}: Add {C}.
{T}: Choose a color. Add one mana of that color unless you control a permanent of that color. Spend this mana only to cast a permanent spell.

When Fallspeaker Satyr enters or dies, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Target opponent reveals their hand. Choose a nonland card revealed this way. That player discards that card.
You lose 2 life and create a 2/1 black Spirit creature token with “This creature can't block.”

When Gnuge-District Hoarder enters, each opponent loses 1 life. You gain life equal to the life lost this way.
Paranoia {1}{B} (You may cast this spell for its paranoia cost when a permanent you control leaves the battlefield.)

Choose one or both —
• Audition for green. (Create a 1/1 Construct Actor creature token, a Scout Role giving 2/3 and vigilance, or a Warrior Role giving 3/2 and trample. Roles replace older ones.)
• Target creature you control fights target creature you don't control.

Whenever an opponent casts a noncreature spell, create a Treasure token. (They're artifacts with “{T}, Sacrifice this artifact: Add one mana of any color.”)

When Beyond the Boneyard enters, exile another target nonland permanent until Beyond the Boneyard leaves the battlefield.
Your opponents can't cast spells that share a card type with the exiled card during postcombat main phases.

Whenever one or more cards leave your graveyard, each opponent loses 1 life and you gain that much life.

Equipped creature gets +1/+1 for each creature you control.
Equip {4} ({4}: Attach to target creature you control. Equip only as a sorcery.)

When Hisana-no-Oni enters, gain control of target creature until Hisana-no-Oni leaves the battlefield.

Flash (You may cast this spell any time you could cast an instant.)
When Sanguine Muralist enters, you may have target creature's toughness become 1 until end of turn.

Deathtouch
When Pestilent Scavenger enters, you may mill three cards.

Changeling (This card is every creature type.)
This creature enters with four -1/-1 counters on it.
Whenever another creature you control enters, if that creature has greater power or toughness than this creature, remove a -1/-1 counter from this creature.

{T}, Discard a card, Sacrifice Danithra Oracle: Target creature gets -3/-3 until end of turn. Activate only as a sorcery.

{T}: Add {C}.
{T}, Reappropriate: Add {R} or {G}. (Exile exactly two cards from your hand and/or graveyard.)

When Evershedder dies, you may put it on the bottom of its owner's library.
Morph {2}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

When Banished Prophet enters, you may remove a counter from a permanent you control. If you do, put a +1/+1 counter on another target creature you control.

Exile target nonland permanent. Its controller gains 5 life.

Target opponent reveals their hand. You choose a nonland card from it. That player discards that card.
Create a Function token with “Draw a card if a player discarded a card this turn.” (It's an enchantment. As you cast an instant or sorcery spell, sacrifice any number of Functions to add their effects to that spell.)

(Add a quest counter as this enters. Sacrifice after 3.)
1, 2 — Whenever you attack with exactly two creatures, add a quest counter.
3 — Reveal the top four cards of your library. You may put a creature card from among them into your hand. Put the rest on the bottom in a random order.
Put two +1/+1 counters on each of up to two target creatures you control.

Flying
Whenever a player shuffles their library, Steamquiver Strix deals 2 damage to that player.

When Enigma Mystic enters, mill three cards.
Enigma Mystic gets +2/+0 as long as there's a Shaman card in your graveyard.
{T}: Add one mana of any color. Activate only if you control another Shaman.

Prevent all combat damage that would be dealt to Silent Reaver.
Prevent all combat damage Silent Reaver would deal to creatures.

Heroic — Whenever you cast a spell that targets Leina Tower Sentry, put a +1/+1 counter on Leina Tower Sentry and you gain 1 life.