msem-instigator

Enchant creature
Enchanted creature has flying and “Sacrifice a creature: This creature gets +2/+1 until end of turn.”
When Fallen Ideal is put into a graveyard from the battlefield, return Fallen Ideal to its owner's hand.

This spell costs {1} less to cast for each permanent sacrificed this turn.
Fallen Sluagh can't be blocked by creatures with power 2 or less.

Trample
Fallen Warden's power and toughness are each equal to the number of creature cards in all graveyards.

Revive abilities of cards in your graveyard cost {1} less.
Sacrifice Fallow Grave: Create a 1/1 black Worm creature token.

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

{W}, {T}: Target creature doesn't untap during its controller's next untap step.

Choose creature or land, or choose both if you control a creature with power 4 or greater. Reveal the top five cards of your library. Put all cards revealed this way with a chosen type into your hand and the rest into your graveyard.

Enchant creature
Enchanted creature gets +3/+0 and has menace.

When False-Cure Smuggler enters, put a -1/-1 counter on another target creature.
{1}{U}, Sacrifice a creature: Proliferate. (Choose any number of permanents and/or players with counters on them, then give each another counter of each kind already there.)

When Familial Matriarch enters, nourish 2. (To nourish 2, either put two +1/+1 counters on this creature or create two 1/1 white Citizen creature tokens.)

As an additional cost to cast this spell, return a creature you control to its owner's hand.
Counter target spell.

Each player returns up to one creature card from their graveyard to their hand. Each opponent sacrifices a creature.

Create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)
Draw a card.

Fang Den Bouncer can't be blocked by creatures with power 2 or less.

Menace (This creature can't be blocked except by two or more creatures.)

When Fang of Andazir enters, each player sacrifices a permanent.
Whenever you sacrifice a creature for the first time each turn, create a 1/1 red Dog creature token.

Poisonous 2 (Whenever this creature deals combat damage to a player, that player gets two poison counters.)
Snakes you control get +1/+1 and have poisonous 1. (Multiple instances of poisonous trigger separately.)

Target opponent discards a card. If they can't, draw a card. (Then exile this card. You may cast the creature later from exile.)

This spell costs {3} less to cast if it targets a creature with mana value 2 or less.
Destroy target creature.

Flying
Other creatures you control with flying get +1/+1.

When Far-Realm Guardian enters, create a green Aura enchantment token named Wild Bounty attached to target creature. The token has enchant creature and “Enchanted creature gets +1/+1 and has ward {2}.”

First strike
When Faradia's Collector enters, if an opponent controls more lands than you, create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

Faradia's Favored attacks each combat if able.
Whenever you pay a tithe, you may return Faradia's Favored from your graveyard to the battlefield.

Tithe (As you cast this spell, you may tap three artifacts and/or creatures you control.)
Faradia's Outrage deals X damage to any target. If this spell's tithe was paid, it deals X damage divided as you choose among any number of targets instead.

Exile target creature. Its controller loses 3 life.