msem-instigator

When Catacomb Dredger dies, return another target creature card from your graveyard to your hand.

You gain 5 life. Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)
Flashback {2}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Creatures you control get +X/+X and gain trample until end of turn.

[+1]: Create a 1/1 red Human creature token with haste.
[–2]: Untap all creatures you control. Until end of turn, they gain “{T}: This creature deals 1 damage to each opponent.”
[–6]: You get an emblem with “Whenever a creature becomes tapped, this emblem deals 2 damage to any target and you gain 2 life.”

Whenever Cattish Bluestocking deals combat damage to a player, draw a card.
Attain {4}{U} ({4}{U}: Transform this. Spend at least three colors of mana to activate this, and only as a sorcery.)

Double strike

Renown 2 (When this creature deals combat damage to a player, if it isn't renowned, put two +1/+1 counters on it and it becomes renowned.)
Whenever Cauldish Arrogant becomes blocked by one or more creatures, reveal the top card of your library. Cauldish Arrogant deals damage equal to that card's mana value to each creature blocking it. Then put that card into your hand.

Lifelink (Damage dealt by this creature also causes you to gain that much life.)
{1}{B}: You gain 1 life.

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.)
When Cauldish Cavalier becomes renowned, you may pay 2 life. If you do, draw two cards.

Bleed {1}{B}{B} (You may cast this spell for its bleed cost if an opponent has lost life this turn.)
All creatures get -4/-4 until end of turn.

Vigilance, reach
Whenever Cave Spider blocks a creature with flying, Cave Spider gets +2/+0 until end of turn.

Trample
Cavern Carver has haste as long as you control another creature with flash or haste.

Whenever Cavern Monstrosity attacks, exile the bottom card of your library. You gain life equal to its mana value.

Flying
Whenever Cavern Scourge attacks, you may exile a card from your graveyard. If you do, you gain 3 life.

Flash
Return another artifact, creature, or enchantment you control to its owner's hand: Caylin Whirlwind gets +3/+3 until end of turn. Activate only once each turn.

Archive 4 (As this enters, shuffle the top four cards of your main library into a new face up library. Sacrifice this after the archived library is empty.)
{1}, Sacrifice a permanent: Put a permanent card with a mana value less than the sacrificed permanent's from the archived library onto the battlefield. Activate only as a sorcery.

[+1]: Untap up to one target creature. It gains deathtouch until your next turn.
[–2]: Target player sacrifices a creature. Return a permanent card from your graveyard to your hand.
[–5]: Put any number of permanent cards from your graveyard onto the battlefield, then sacrifice that many permanents.

Enchant creature
Enchanted creature can't attack or block.
{3}{W}: Attach Cease Conflict to target creature.

Flash
When Ceaseless Valiant enters, another target permanent gains indestructible until end of turn.
Recite {1}{W} (You may cast this creature from your graveyard for its recite cost. If you do, exile it when it enters or if it would leave the battlefield.)

[+1]: Each opponent loses 1 life and you gain 1 life. Mill a card. If you do, you may shuffle a card from your graveyard into your library.
[0]: Any number of target players each discard a card. If you have an insight counter, return up to one creature card from your graveyard to your hand.
[0]: You get an insight counter.
[–2]: Target creature gets -3/-3 until end of turn.

Flying
When Celebrant of Jubilation enters, untap all creatures you control.
Cycling {2} ({2}, Discard this card: Draw a card.)

Create three 1/1 white Soldier creature tokens, two 2/2 white Knight creature tokens with vigilance, and a 4/4 white Angel creature token with flying.

Choose one —
• Destroy all creatures.
• Create a 4/4 white Angel creature token with flying and vigilance.

You may reveal a creature card from your hand. Return each creature with power less than the greatest power among creatures you control and creature cards revealed this way to their owners' hands .