msem-instigator

Flying
Whenever Capricious Wind's Disciple attacks, another target creature in its pack gains double strike until end of turn. (Two or more creatures you control with equal power are in a pack.)

Assault {1}{G} (Whenever this attacks, if it has no +1/+1 counters on it, you may pay its assault cost to put a +1/+1 counter on it.)
When Caprin Outlander assaults, you gain 3 life.

Captain Fina Redtail can't be blocked as long as you control another attacking Pirate.
Whenever Captain Fina Redtail deals combat damage to a player, you may pay {2}. If you do, create a 2/1 black and red Cat Pirate creature token with menace.

When Captured Mind dies, create a 3/3 white Construct enchantment creature token.

When Caravan Guard enters, for each kind of counter on target permanent, put another counter of that kind on it or remove one from it.

Sacrifice Caravan Merchant: Add {R}{R}.

Carefree Performer can't be sacrificed.
You may exert Carefree Performer as it attacks. When you do, discard two cards, then draw two cards. (An exerted creature won't untap during your next untap step.)

Careless Violence deals 2 damage to each creature. If a creature dealt damage this way would die this turn, exile it instead.

Caress the Fleets deals 1 damage to each creature. Create an Idol token. (It's an artifact with “{1}, Sacrifice this artifact: Put a +1/+1 counter on target creature. Activate only as a sorcery.”)

Until end of turn, all creatures gain deathtouch and “When this creature dies, its controller loses 2 life.”

Flying
Whenever Carrier Pigeon attacks or blocks, target creature gains winnow until end of turn. (Damage dealt to it also causes its controller to lose that much life.)

{2}, {T}, Sacrifice Cartographer's Chart: Search your library for a land card, reveal it, and put it into your hand, then shuffle.
{2}, {T}, Sacrifice Cartographer's Chart: Draw a card.

Vanishing 3 (This permanent enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
Whenever a time counter is removed from a permanent you control, Carve a Path deals 1 damage to any target.

Enchant creature
Enchanted creature has defender.
Whenever enchanted creature blocks, you gain 1 life.

Target opponent reveals their hand. You choose a nonland card from it and exile that card.

Return target creature card from your graveyard to your hand. You may trigger a death knell of that card.

Choose one. If you're horrific, you may choose both instead. (You're horrific as long as you've sacrificed a permanent or discarded a card this turn.)
• Destroy target artifact.
• Catastrophic Crash deals 3 damage to target creature.

Return target tapped creature to its owner's hand. (Then exile this card. You may cast the creature later from exile.)

As an additional cost to cast this spell, discard two cards.
Draw three cards.

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

First strike (This creature deals combat damage before creatures without first strike.)
Whenever Cauldish Warmonger attacks, create a 1/1 white Soldier creature token that's tapped and attacking.

Other nonland permanents enter tapped.
Your opponents can't activate abilities of tapped permanents.

Improve {1} ({1}: Put a +1/+1 counter on this artifact. This costs {1} more to activate for each +1/+1 counter on it. Improve only as a sorcery.)
Whenever one or more creatures crew Cavalier Deluxe Roadster, you may phase out up to one of those creatures.
Crew 1. Activate only once during each of your turns.

Look at the top three cards of your library. Put one into your hand and the rest into your graveyard. You lose 1 life.

When Cave Eel enters, look at the top three cards of your library. Put one on top and the rest on the bottom in any order.