msem-instigator

({T}: Add {W}.)
Sunstage enters tapped.
When Sunstage enters, creatures you control get +0/+1 until end of turn.

At the beginning of each opponent's end step, that player loses 1 life for each creature they control unless they sacrifice a creature. Then they lose 1 life for each card in their hand unless they discard a card.

When United in Battle enters, look at the top six cards of your library. You may reveal a Dwarf or Elf card from among them and put it into your hand. Put the rest on the bottom in a random order.
Whenever a Dwarf or Elf you control enters, put a +1/+1 counter on it.

Whenever you cast a noncreature spell, put a +1/+1 counter on Adrift Surveyor.
Surpass {5}{U} ({5}{U}: Transform this creature. This costs {1} less to activate for each counter on it. Activate only as a sorcery.)

{T}: Add {C}.
{1}, Discard Imperial Port: Search your library for a basic land card, reveal it, and put it into your hand. Then shuffle.

When Insurgent Racketeer enters or dies, you may discard a card. If you do, draw a card.

At the beginning of each upkeep, choose one that hasn't been chosen —
• Exile target tapped nonland permanent.
• Draw two cards, then discard a card.
• Return up to two target permanent cards from your graveyard to your hand.
• Exile Take the City, then return it to the battlefield under your control.

Vigilance
Shuye, Forever Watching's power and toughness are each equal to the number of noncreature permanents you don't control.

First strike
Whenever a player loses life, creatures you control get +1/+0 until end of turn.

Enchant player
At the beginning of enchanted player's draw step, they draw an additional card.
At the beginning of enchanted player's end step, that player discards all but one card in their hand.

Whenever Uncanny Allocator enters or attacks, give any number of permanents and/or players with counters on them another counter of each kind already there.

Transcend (Activate as a sorcery to gain the next type and a +1/+1 counter.)
Vigilance
Martoob of Flowing Life has ward {X}, where X is the number of counters on her.
{G}{U}: Angel — Put a +1/+1 counter on each other creature you control.
{2}{G}{U}: Elder — Double the number of counters on permanents you control.

Return target creature card from your graveyard to your hand. (Then exile this card. You may cast the creature later from exile.)

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Pressure {3}{B}{G} (You may cast this spell for its pressure cost if seven or more cards are in your graveyard.)
When Sunken-Eye Angler enters, mill three cards. Then if it was cast for its pressure cost, you may return a creature card from your graveyard to the battlefield.

When Runaway Princess dies, audition for white. (Create a 1/1 Construct Actor creature token, a Scout Role giving 2/3 and vigilance, or a Cleric Role giving 2/2 and lifelink. Roles replace older ones.)

As an additional cost to cast this spell, sacrifice a creature.
Draw cards equal to the sacrificed creature's power.

Up to one target creature can't block this turn. (Then exile this card. You may play the land later from exile.)

Target opponent sacrifices a creature with the greatest power among creatures that player controls.
Fabled {3}{B}{B} (Then if you cast this for its fabled cost, put it onto the battlefield transformed attached to that player.)

Firehearth Halls enters tapped unless you control a basic Mountain.
{T}: Add {R}.
{R}{R}: Firehearth Halls becomes a 1/1 red Dwarf Warrior creature with double strike until end of turn. It's still a land.

As Aquatic Refuge enters, you may tap an untapped creature you control. If you don't, Aquatic Refuge enters tapped.
{T}: Add {W} or {U}.

Flash
When Swift Savior enters, if you control a legendary creature, you may have Swift Savior deal 2 damage to target attacking or blocking creature.

{T}: Add {G}.
{G}, {T}: Target creature gains trample until end of turn.

When Tempting Gate enters, draw a card, then choose a card name.
At the beginning of your end step, you may exile any number of target creatures you control with the chosen name, then return them to the battlefield under your control.

Flying
Deploy 3 (As this enters, you may tap any number of other creatures you control with total power 3 or more.)
When Grasping Choir enters, you may exile target creature if it's tapped or if Grasping Choir was deployed.