msem-instigator

When Symbiotic Sprout dies, create two 1/1 green Saproling creature tokens.

{4}{G}{G}, Exile six other cards from your graveyard: Return Trifold Atrocity from your graveyard to the battlefield with three +1/+1 counters on it. Activate only as a sorcery.

When Twinforged Golem enters, create a 3/3 colorless Golem artifact creature token.

Mill three cards, then you may return a creature or land card from your graveyard to your hand.

{3}{B}: Regenerate Flesh Hoarder Ghoul. (The next time this creature would be destroyed this turn, it isn't. Instead tap it, remove all damage from it, and remove it from combat.)

When Hand of Consequence enters, creatures your opponents control get -1/-1 until end of turn.
At the beginning of your upkeep, if your fealty to Swamps is five or greater, transform Hand of Consequence. (Each Swamp you control counts towards your fealty to Swamps.)

Bleed {R} (You may cast this spell for its bleed cost if an opponent has lost life this turn.)
Amongst the Flames deals 2 damage to each creature.

Whenever another Warrior creature you control attacks, you may return Stubborn Blademate from your graveyard to the battlefield tapped and attacking. If you do, sacrifice it at end of combat.

Flying
Whenever another creature you control enters, create an Idol token.
Whenever you put a +1/+1 counter on Ya'Ling, put a +1/+1 on each other creature you control. This ability triggers only once each turn.

Whenever Watch Me Burn enters or another source you control deals noncombat damage, put an ignition counter on Watch Me Burn. Then it deals damage equal to the number of ignition counters on it to each opponent.

Target creature gains double strike and trample until end of turn. (Then exile this card. You may cast the creature later from exile.)

As an additional cost to cast this spell, sacrifice a creature.
Surveil 2, then draw a card. Create a Treasure token and a 1/1 black Bat creature token with flying and “This creature can't block.”

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

Return up to one target creature card and up to one target noncreature permanent card with total mana value 4 or less from your graveyard to the battlefield.
Exile Beckon the Damned.

Whenever one or more Rogues you control attack, you may pay 1 life. If you do, draw a card.

(Choose only one work as a sorcery to add its ability.)
When Wildlife Sketches enters, reveal the top five cards of your library. Put a creature card from among them into your hand and the rest on the bottom in any order.
{1}{G}: Carnation Petals
You may cast creature spells as though they had flash.
{3}{G}: Pecking Order
At the beginning of your upkeep, you may sacrifice a creature. If you do, search your library for a creature card with mana value equal to 1 plus the sacrificed creature's mana value, put it onto the battlefield, then shuffle.

Sunrise Ruins enters tapped.
{T}: Add {B}.
You may untap Sunrise Ruins during each other player's untap step. Whenever you do, you lose 1 life.

Dead-Set Duo can't block.
Whenever Dead-Set Duo deals combat damage to a player, you may pay {B} and sacrifice it. If you do, they discard two cards.

This spell has flash as long as you control a creature with flash or haste.
Discard up to two cards, then draw that many cards plus one.

Flying, lifelink
Sacrifice a creature: Until end of turn, Turned Watcher gets +1/+0 and gains “Whenever Turned Watcher deals combat damage to a player, draw a card.”

Enchant opponent
Creatures enchanted player control lose hexproof and indestructible and can't have or gain hexproof or indestructible.

Whenever you cast an enchantment spell, reveal the top card of your library. If it's an enchantment card, you may put it onto the battlefield.

Flash
Flying
When Mischievous Sprite enters,you may tap or untap target permanent.

Flash
Ocean's Edge Kraken enters with a hexproof counter on it.
{6}{U}{U}, Remove a hexproof counter from Ocean's Edge Kraken: Return all other creatures to their owners' hands.

Flash
When Outland Alchemist enters, return another permanent you control to its owner's hand.