msem-instigator

When Dualglaive Acolyte enters, create a green Aura enchantment token named Calamighty attached to target creature. The token has enchant creature and “Enchanted creature gets +1/+1 and can't be blocked by creatures with power 2 or less.”

Obscoriate deals 4 damage to target creature or planeswalker. The next time that permanent would die this turn, instead put a basalt counter on it, it becomes a Mountain land named Charred Remains, loses all other card types, and gains “At the beginning of your upkeep, Charred Remains deals 1 damage to you.” (It has “{T}: Add {R}” and loses abilities it already had.)

Whenever a permanent you control leaves the battlefield, put a +1/+1 counter on Royal Doctor.
When Royal Doctor leaves the battlefield, you gain life equal to its power.

Draw three cards.
Satrapycycling {2} ({2}, Discard this card: Search your library for a Satrapy card, reveal it, put it into your hand, then shuffle.)

Flash
Flying
When Oshin enters, counter target spell if its mana value is less than or equal to the number of spells you've cast this turn.

Enspirit (As you cast this spell, you may exile a nonenchantment creature you control until this leaves the battlefield or fails to resolve. Reduce this spell's cost by the exiled card's mana value.)
When Returned Bokor dies, return it to its owner's hand.

Vigilance
Whenever Bartimus attacks, another target attacking creature gets +1/+1 until end of turn. If that creature is a Soldier, put a +1/+1 counter on it instead.

Reveal up to four cards you own from outside the game with the same name, then shuffle them into your main library.
Draw a card.

Each other Okus planeswalker you control enters with two additional loyalty counters on it.
[–2]: Draw two cards, then discard a card.

Whenever you cast a spell from anywhere other than your hand, return Ruthless Bakhtak from your graveyard to your hand.

When Vedalken Wingcrafter enters, create a 1/1 colorless Thopter artifact creature token with flying.

Return target creature card with mana value 3 or less from your graveyard to the battlefield.

Dawn Siege deals 4 damage to target creature and 2 damage to each other creature.

Jungle Shrine enters tapped.
{T}: Add {R}, {G}, or {W}.

Search your library for a Spirit card, exile it, then shuffle. You may cast that card this turn.

Fennec Fostress gets +1/+0 for each Aura you control.

[+1]: Until your next upkeep, creatures can't attack you or planeswalkers you control unless their controller pays {2} for each of those creatures.
[–2]: Look at the top two cards of target player's library. Put any number of them on top of that library and the rest on the bottom in any order.
[–6]: Return all nonland permanents you don't control to their owners' hands.

Until end of turn, target creature gets +X/+X and can only be blocked by X or more creatures.

Permanents you control are black. The same is true for spells you control and nonland cards you own that aren't on the battlefield.
At the beginning of your upkeep, you may pay {B}. If you do, you draw a card and you lose 1 life.

Reach
When Primordial Artisan enters or attacks, look at the top card of your library. If it's a permanent card with mana value less than or equal to your devotion to green, you may put it onto the battlefield. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)

Whenever you pay a tithe, you may pay {2}. If you do, each opponent loses 3 life and you gain 3 life.

Eureka! (At the beginning of each end step, you get a research counter if you cast a spell this turn. Then if you have eight or more research counters, remove them and create a Masterpiece token of your choice.)
{T}: Draw a card, then discard a card.

Create two 1/1 Insect creature tokens that are all colors.
Create a Vial token. (It's an artifact with “{1}, Sacrifice this and another permanent: Draw a card. Activate only during your turn.”)

Destroy target creature that dealt damage to a creature you control this turn.

[+1]: Until end of turn, you may cast a creature card from your graveyard. Creature spells cast this way cost {2} less to cast.
[–2]: Each player discards a card. For each player who discarded a creature card this way, create a 2/1 black Horror creature token.
[–6]: For each player, you may put a creature card from that player's graveyard onto the battlefield under your control.