msem-instigator

Overgrown Siren must be blocked if able.

Tinyvale Treetops enters tapped unless you played it from exile.
{T}: Add {G} or {W}.

Enchant creature you control
When Flamespeaker's Craft enters, it deals 2 damage to any target.
Enchanted creature has “{T}, Discard a card: Draw a card.”

Vision (Whenever this or another creature you control enters, reveal the top card of your library. Then you may put that card into your graveyard.)
Whenever Vessel of Lost Souls envisions a creature card, you may have it become a copy of that card until end of turn.

At the beginning of your upkeep, you may pay 2 life. If you do, crystallize. (Put a +1/+1 counter on a creature you control or create a Treasure.)

As an additional cost to cast this spell, pay any amount of life.
Search your library for a card. If you have 10 or less life, search your library for two cards instead. Put those cards into your hand, then shuffle.

Sabotage — Whenever an opponent or permanent an opponent controls becomes the target of a spell you control, put a quest counter on Beckon Darkness.
At the beginning of your upkeep, if Beckon Darkness has four or more quest counters on it, return target creature card from your graveyard to the battlefield.

Whenever you cast a spell, you may pay {1}. If you do, Wizened Tortle explores. (Reveal the top card of your library. Put it into your hand if it's a land. Otherwise, put a +1/+1 counter on this creature, then you may put that card in your graveyard.)

Deathtouch
Foresight — Whenever you draw your second card each turn, each opponent loses 1 life and you gain 1 life.
{1}{B}: Qalam Surveyor gains menace until end of turn.

{T}: Add one mana of any color.
Augmented — Whenever a nontoken creature you control enters, if you've spent {W}{U}{B}{R}{G} to cast spells this turn, put a +1/+1 counter on it.

Flash
Return another artifact, creature, or enchantment you control to its owner's hand: Caylin Whirlwind gets +3/+3 until end of turn. Activate only once each turn.

Chronicle (As this enters and after your draw step, add a lore counter. Stop after III.)
[Lore I-II] Target creature you control can't be blocked by creatures with power 2 or less this turn.
[Lore III] Draw a card.

Prowess, haste
Whenever you cast an instant or sorcery spell, you may shuffle the cards in your hand into your library, then draw that many cards.

Flying
When Sharp-Eyed Wingmate enters, you may return target creature to its owner's hand.

Target creature gets +2/+2 and gains indestructible until end of turn.

Reveal the top five cards of your library. You may put a permanent card revealed this way into your hand and the rest into your graveyard.

At the beginning of your upkeep, germinate. Then if creatures you control have total power 10 or greater, transform Mushroom Merchant. (To germinate, put a +1/+1 counter on a creature or create a 1/1 green Saproling creature token.)

Boneyard Pass enters tapped unless you control a basic land.
{T}: Add {W} or {B}.

{3}{B}, Discard a card: Each opponent loses 2 life and you gain 2 life.
At the beginning of your upkeep, if there are five or more creature types among cards in your graveyard, you lose 1 life and draw a card.

({T}: Add {W} or {U}.)
Whenever Sedate Tundra becomes tapped, you lose 1 life unless you control two or more basic lands.

When Lotus Wastes Survivalist enters, target player discards a card. Create a Treasure token unless a nonland card was discarded this way.

You may cast cast up to two target instant and/or sorcery cards with total mana value 6 or less from your graveyard without paying their mana costs. If a spell cast this way would be put into your graveyard, exile it instead.
Exile Pointer Churn.

Vigilance
When this creature dies, target creature you control seeks secrets or valor. (Give it that Oath Aura. Fulfill secrets by attacking with it and two or more other creatures to draw a card. Fulfill valor by dealing combat damage to a player to create a 2/1 white Soldier token.)

Deathtouch
Instant and sorcery spells you control have deathtouch.
{2}{B}: Exile target creature card from an opponent's graveyard, then create a 2/2 black Zombie creature token and put a +1/+1 counter on Saffrisa, Heir Apparent.

Look at the top three cards of your library. Put one of them into your hand and the rest into your graveyard.
Tether (Then if you cast this from your hand, you may exile it tethered to a creature you control. When it dies, you may cast this from exile without paying its mana cost.)