msem-instigator

{W}: Gorran Explorer gains lifelink until end of turn.

Exile target creature. That creature's controller reveals cards from the top of their library until they reveal a creature card. That player puts that card onto the battlefield, then shuffles the rest into their library.

Foretell {2}{U}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
Choose one. If this spell was foretold, you may choose both instead —
• Draw three cards, then discard two cards.
• The owner of target nonland permanent puts it on the top or bottom of their library.

As an additional cost to cast this spell, sacrifice a creature.
Enchant creature
Enchanted creature gets +4/+4, has flying, and is a Demon in addition to its other types.

Flying
Whenever one or more counters are put on a creature you control, Curio Siren gets +1/+0 until end of turn.

At the beginning of your upkeep, if each opponent controls more lands than you, search your library for a basic land card, reveal it, and put it into your hand, then shuffle.

Vanishing 4 (This permanent enters with four 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 Worship in Vain, discard your hand, then draw a card for each time counter on Worship in Vain.

Creatures you control named Colocolo can't be blocked and have ward {2}.
{U}{U}: Put an inspiration counter on target creature. It's named Colocolo in addition to its other names for as long as it has an inspiration counter on it.

Untap target creature. It gets +1/+1 for each token you control until end of turn.

Creatures can't attack you unless their controller pays {2} for each of those creatures.
Mirage {1}{U} (You may cast this spell as though it had flash for its mirage cost. If you do, sacrifice it at the beginning of the next cleanup step.)

Vigilance, trample
Pay 3 life: You choose if and how target creature attacks or blocks this turn. You choose before its controller declares other attackers or blockers. Activate only once each turn.

As Protect the Treasure enters, choose offense or defense.
Whenever an artifact you control enters for the first time each turn,
• Offense — Protect the Treasure deals 2 damage to each opponent.
• Defense — Add {R}{R}.

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

Art of war — At the beginning of your end step, if Raiun Bay Scourge dealt damage to an opponent this turn, gain control of target artifact or enchantment until Raiun Bay Scourge leaves the battlefield.

Double strike
Art of war — At the beginning of your end step, if Jaakuna Tyrant dealt damage to an opponent this turn, put a +1/+1 counter on it.

When Folded Fan Recruit enters, invigorate 1. (Choose a creature with the least power among creatures you control and put a +1/+1 counter on it.)

Each creature you control with a +1/+1 counter on it has trample.
{1}{R}{G}: Pyresong Aspirant deals 1 damage to target creature. You may have that creature gain hexproof until end of turn.

Target creature gets -3/-3 until end of turn.

Whenever a creature you control dies, you may search your library for a creature card with lesser mana value, put it onto the battlefield tapped, then shuffle. Do this only once during each of your turns.

This spell costs {R} less to cast if it targets a white or blue permanent.
Once Scarred deals 4 damage to target creature or planeswalker.

Whenever you cast a spell that doesn't share a color with Pelt Mystic, you may scry 1.

Flash
Enchant instant or sorcery spell
Enchanted spell's text box is “This spell deals 3 damage to you.”
{4}{U}{U}{R}{R}: Return Mental Meltdown from your graveyard to the battlefield.

If an opponent controls three or more attacking creatures, you may cast this spell as though it had flash.
Firewall Trap deals 5 damage to target creature. When that creature dies this turn, Firewall Trap deals damage equal to that creature's power to another target creature.

Flying
When Morningheart Griffin dies, return target enchantment card from your graveyard to your hand.

Whenever Organ Scavenger perseveres, each opponent loses 2 life. (A creature perseveres when it survives damage.)