msem-instigator

Enchant creature with flying
Enchanted creature can't attack or block, and it loses all abilities other than flying.

First strike
Noncreature spells with mana value 4 or greater cost {1} more to cast.

Converge — Draw a card for each color of mana spent to cast Wisdom of the Leylines. Then discard a card.

Haste
{T}, Sacrifice a creature: Ashspeaker deals 1 damage to any target.

Vigilance
Conflict Capturer gets +2/+0 as long as a permanent you controlled left the battlefield this turn.

Up to two target creatures can't block this turn.
Agonize (You may cast this card from your graveyard by putting a -1/-1 counter on a creature you control in addition to paying its other costs. Then exile this card.)

Trample
Augmented — When Lonely Giant enters, if you've spent {W}{U}{B}{R}{G} to cast spells this turn, put two +1/+1 counters on it.

Flash (You may cast this spell any time you could cast an instant.)
When Bloodhunter Orca enters, target opponent sacrifices a creature that was dealt damage this turn.

Menace
Whenever you cast an instant or sorcery spell, create a 2/2 black Zombie creature token. This ability triggers only once each turn.

Tribute 1 (As this creature enters, an opponent of your choice may put a +1/+1 counter on it.)
When Haggard Jackal enters, if tribute wasn't paid, each opponent discards a card.

Valley Falls enters tapped unless you control two or more white and/or blue permanents.
{T}: Add {W} or {U}.

Prowess
Grizzled Stoker can't be blocked as long as you control an artifact.

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.

Flameblade deals 4 damage to target player or planeswalker.

Creatures you control get +2/+2 and gain first strike until end of turn.

Target creature gets +3/+0 and gains haste and winnow until end of turn. (Damage dealt to it also causes its controller to lose that much life.)

Flying
When Gemscale Drake enters, create a Treasure token.
Whenever Gemscale Drake deals combat damage to a player, scry 1. If you control three or more artifacts, draw a card instead.

Chronicle (As this enters and after your draw step, add a lore counter. Stop after III.)
[Lore I-II] Each player loses 1 life.
[Lore III] Create a 1/1 black Harpy creature token with flying.

Tap an untapped creature you control: Put a loyalty counter on Ivenge, False God. Activate only once each turn.
[+1]: Exile up to one target non-Plains permanent. At the beginning of that card's owner's next upkeep, return it to the battlefield under their control.
[–2]: Exile target nonland permanent an opponent controls. They create a Plains token. (It's a basic land with “{T}: Add {W}.”)
[–10]: Exile all permanents your opponents control. For each permanent exiled this way, its controller creates a colorless Plains basic land token.

Flying
When Soli's Blessed enters, judge another target creature you control. (Honor it by putting a +1/+1 counter on it or condemn it by sacrificing it to draw a card.)

Prowess
Foresight — When Outpost Merchant enters, if you've drawn two or more cards this turn, create two 1/1 white Bird creature tokens with flying.

Flash
When Elusive Illusionist enters, target attacking creature gets -2/-0 until end of turn.

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

Flash
When Thraben Redeemer enters, choose up to one target permanent card in your graveyard that was put there from the battlefield this turn. Return it to your hand.

Whenever an opponent discards a card, you may draw a card.