msem-instigator

Anran's Realm enters tapped.
{T}: Add {R} or {G}.
{R}{G}, {T}: Create a Function token with “This spell can't be countered.” Activate only if you control a creature with power 4 or greater. (It's an enchantment. As you cast an instant or sorcery spell, sacrifice any number of Functions to add their effects to that spell.)

{T}: Add {C}.
{1}, {T}, Sacrifice Shifting City: Search your library for a basic land or Satrapy card, put it onto the battlefield tapped, then shuffle.

Flying
Rezzal, the Loamfeaster gets +1/+1 for each nonland card exiled with it.
You may play lands exiled with Rezzal.
{1}{B/G}: Exile target card from an opponent's graveyard. Activate only outside of combat.

You may pay {W}{U}{B}{R}{G} rather than pay this spell's cost.
When Suncolored Dreamer enters, draw a card.

Whenever Student of the Coil attacks, target creature gains poisonous 1 until end of turn. (Whenever that creature deals combat damage to a player, that player gets a poison counter.)

Flying, lifelink
Other Demons you control have flying and lifelink.
If you would create a creature token, you may instead pay 5 life and create a 5/5 black Demon creature token.

{T}: Put target permanent you own on the bottom of your library.
{1}, {T}: Add one mana of any color. When that mana is spent, target opponent loses 1 life.

Once during each of your turns, you may cast a legendary creature or planeswalker spell from your graveyard.
Sacrifice Pallid Herald: Exile up to three target cards from graveyards.

Whenever one or more other creatures you control enter, upgrade each creature you control. (Give each one of the listed counters it doesn't already have. Upgrades are independent.)
• +1/+1
• Flying
• First strike
• Vigilance
• Lifelink

When Gold Farmer enters, create a Treasure token.

Target creature you control gains trample until end of turn. Whenever that creature deals damage to a player this turn, create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

Players skip their untap steps during extra turns.

Rakkiri Pathblazer gets +2/-1 as long as it's embattled. (A creature is embattled if it has a counter on it or has a permanent you control attached to it.)

Final Struggle deals 3 damage to target creature. When that creature dies this turn, exile it and create a 3/3 red Shark enchantment creature token.

As long as there are three or more creature cards in your graveyard, Returned Minotaur gets +1/+1 and has menace.

Flash
Deathtouch

Escalate—Return another spell you control to its owner's hand. (Pay this cost for each mode chosen beyond the first.)
Choose one or both —
• Draw a card.
• Draw a card.

{T}: Add {C}.
{2}, {T}: Put target Aura or Equipment card from your graveyard on top of your library.

Flying, vigilance

When this enchantment enters, target creature you control seeks valor. (Give it that Oath Aura. Fulfill it by it dealing combat damage to a player to create a 2/1 white Soldier token.)
Whenever you fulfill an Oath of a Knight or Soldier, create a 1/1 black Bat creature token with flying and “This creature can't block.”

Flying
As long as you control exactly one other creature, that creature gets +1/+1 and has flying.

{T}: Add {G}.
{B/G}, {T}: Exile target card from a graveyard. If that card is a creature card, put a +1/+1 counter on Dovon, Verdant Experimenter and you gain 1 life.

Enchant land
Enchanted land has “{T}: Add {G}{G}.”

When Aether Sculptor enters, create a tapped colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

Double strike
Battalion — Whenever Voracious Howler and at least two other creatures attack, Voracious Howler gets +2/+0 until end of turn.