msem-instigator

First strike
{R}, Discard a land card: Put a +1/+1 counter on Lavamancer Adept. It gains menace until end of turn.

{T}: Add {C}.
{T}, Tap an untapped artifact, creature, or land you control: Add one mana of any color.
{T}: Choose a card name, then reveal the top card of your library. If that card has the chosen name, you may sacrifice Sealed Archives and draw a card.

Sunlit Fissure enters tapped.
{T}: Add {G} or {W}.
{2}{G}{W}: Until end of turn, Sunlit Fissure becomes a 3/5 green and white Elemental creature with with vigilance and “Whenever this creature attacks or blocks, torment yourself.” It's still a land. (To torment yourself, lose 3 life unless you discard a card or sacrifice a nonland permanent.)

({T}: Add {B} or {R}.)
Ruined Shrine enters tapped unless you control two or more basic lands.

Inspired — Whenever Emperor Dan Te Mogui becomes untapped, look at the top three cards of your library. Put one into your graveyard, one on the bottom of your library, and one on top.
When Emperor Dan Te Mogui dies, you may put it on the bottom of your library. If you do, return target permanent card from your graveyard to your hand.

When Political Opportunist enters, you may shuffle the cards from your hand into your library, then draw that many cards.

Whenever you draw a card, put a +1/+1 counter on Sage of Wilds.
Augmented — {T}: Scry 1, then draw a card. Activate only if you've spent {W}{U}{B}{R}{G} to cast spells this turn.

Equipped creature has haste.
At the beginning of combat on your turn, create a token that's a copy of equipped creature, except the token isn't legendary if equipped creature is legendary. That token gains haste. Exile it at the beginning of the next end step.
Equip {2}

{2}, {T}: Reveal the bottom card of your library. You gain life equal to its mana value. You may put it into your graveyard.

Whenever you cast a spell during an opponent's turn, put a +1/+1 counter on Champion of the Fae.

Lifelink
Arcblade Enforcers gets +1/+1 as long as you control an enchantment.

Artifact creatures you control can't be blocked by nonartifact creatures.
{2}{U}{R}: Put a +1/+1 counter on an artifact creature you control or a progress counter on a Project you control.

Exile target creature. At the beginning of the next end step, return that card to the battlefield under its owner's control with your choice of X counters on it from among +1/+1, flying, first strike, and/or vigilance.

Flying
When Glenach enters, put three -1/-1 counters on a creature you control.
When Glenach leaves the battlefield, return target non-Insect permanent card from your graveyard to your hand.

({T}: Add {U} or {B}.)
Ghostspore Mire enters tapped.
{1}, {T}: Add {U}{U} or {B}{B}.

Lifelink
Embellish {2}{B} (If you cast this spell for {2}{B}, create a 1/1 blue Thopter artifact creature token with flying when it enters.)

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.

Lifelink
Effigy of Morality gets +1/+1 as long as your fealty to Plains is four or greater. (Each Plains you control counts towards your fealty to Plains.)

Enchant creature
Enchanted creature gets +2/+3 and has trample.

Landfall — Whenever a land you control enters, create a 5/5 green Wurm creature token with trample.

Return target spell to its owner's hand. Its controller can't cast spells this turn. (Spells cast before this resolves are unaffected.)

When Croakfolk Troubadour enters, draw a card.

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

Flash
First strike
When Imposing Databdara enters, return each other creature with toughness less than or equal to the number of Satrapies you control to their owners' hands.

Menace, trample, indestructible
Whenever Aghavaan Unleashed deals combat damage to a player, that player gets that many poison counters.
At the beginning of your end step, sacrifice another creature or transform Aghavaan Unleashed.