msem-instigator

Flash
When Div of Unsettling Secrets enters, exile target permanent or spell. Its controller draws two cards.

Disappointment's power and toughness are each equal to the number of differently named lands you control.
Whenever Disappointment enters or deals damage to a player or noncreature permanent, you may return target nonland permanent card from your graveyard to the battlefield. It's a land with “{T}: Add one mana of this card's colors” and loses all other types and abilities.

You may cast target card in an opponent's graveyard without paying its mana cost.
Flashback {4}{B}{G}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flying, ward {3}
Whenever you cast a spell from your hand, you may exile target card that shares a type with it from a graveyard. Until the end of your next turn, you may play that card.

Choose two —
• After the first postcombat main phase this turn, there's an additional combat phase followed by an additional main phase. Creatures you control gain vigilance until end of turn.
• Creatures you control gain indestructible until end of turn.
• Creatures you control gain lifelink until end of turn.
• Creatures you control get +2/+0 until end of turn.

Return each card with a cycling ability from your graveyard to your hand. You may cast any number of nonland cards with total mana value X or less from your hand without paying their mana costs, where X is the number of Satrapies you control.

Destroy all creatures. Amass Soldiers X, where X is the number of creatures destroyed this way. (Put X +1/+1 counters on an Army you control. It's also a Soldier. If you don't control one, create a 0/0 black Soldier Army creature token first.)

Choose two —
• Put two +1/+1 counters on target creature.
• Atieh's Command deals damage to any target equal to the greatest power among creatures you control.
• You gain life equal to the greatest power among creatures you control.
• Draw cards equal to the greatest power among creatures you control, then discard three cards.

Menace
Whenever Aswaran Conquerer attacks, you may sacrifice a nonland permanent. If you do, creatures you control get +1/+1 and gain trample until end of turn.

Choose two —
• Exile target creature with the greatest power among creatures on the battlefield.
• Target player looks at the top four cards of their library. They put one into their hand, then exile the rest.
• Exile up to four target cards from opponents' graveyards.
• Until the end of your next turn, target player may play cards exiled by Andazir's Command.

Whenever a creature you control deals combat damage to a player or noncreature permanent, draw a card if it had a counter on it. Otherwise, put a +1/+1 counter on it.

Flying, lifelink, deathtouch

If another creature with a +1/+1 counter on it you control would die, instead remove a counter from it. If you do, it phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.)

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.

Amass Soldiers X, where X is the number of counters on permanents you control. (Put X +1/+1 counters on an Army you control. It's also a Soldier. If you don't control one, create an 0/0 black Soldier Army creature token first.)

Lifelink
Whenever Zagos Abomination attacks, exile another target creature you control, then return it to the battlefield under your control tapped and attacking. It gains menace until end of turn.

(As an Encounter enters, choose an opponent to protect it. You and others can attack it. When defense counters are removed, create a 0/0 Army token if you don't control one, then put that many +1/+1 counters on a Army you control.)
Whenever a creature you control attacks Figments of the Muktann, create a token that's a copy of that creature that's tapped and attacking the player protecting Figments of the Muktann. Sacrifice the token at the beginning of the next end step.

Transcend (Activate as a sorcery to gain the next type and a +1/+1 counter.)
Whenever Cyrukan enters or transcends, create two 1/1 white Soldier creature tokens with haste.
{2}{R}{W}: Angel — Creatures you control get +1/+0 and gain first strike until end of turn.
{3}{R}{W}: Elder — Creatures you control gain lifelink and vigilance until end of turn.

Transcend (Activate as a sorcery to gain the next type and a +1/+1 counter.)
Flying
Tamaak the Arid Swarm can only transcend if you've sacrificed a permanent this turn.
{B}{G}: Demon — Create two 1/1 black Insect creature tokens with flying.
{X}{B}{G}: Elder — Destroy each other nonland, nontoken permanent with mana value X or less.

Other Azra and Demons you control get +1/+1.
As long as you control three or more other Azra and/or Demons, Herald of Tamaak gets +1/+1 and has flying.

Whenever you cast an Azra spell, mill three cards.
Whenever you cast a Demon spell, you may return an Azra card with lesser mana value than that spell from your graveyard to the battlefield.

Whenever you cast a noncreature spell, put a number of charge counters on Selection at Danaj equal to that spell's mana value.
At the beginning of your end step, you may remove four charge counters from Selection at Danaj. If you do, look at the top four cards of your library, put one into your hand and the rest on the bottom of your library in a random order.

Transcend (Activate as a sorcery to gain the next type and a +1/+1 counter.)
The first instant or sorcery spell you cast on each of your turns costs {U/R} (or {1}) less to cast.
{U}{R}: Angel — Put a flying counter and a prowess counter on Rahstahde.
{5}{U}{R}: Elder — Exile any number of instant and/or sorcery cards from your graveyard. For each card exiled this way, copy it. You may cast the copies without paying their mana costs.

Whenever you cast your first noncreature spell each turn, you may cast a creature spell with lesser mana value from your hand without paying its mana cost.
Whenever you attack with three or more creatures, target instant or sorcery card in your graveyard gains flashback until end of turn. The flashback cost is equal to its mana cost.

{W}{B}, Pay X life: Return target creature card with mana value X from your graveyard to the battlefield with a finality counter on it. Activate only as a sorcery and only once each turn.
{W}{B}, Pay 3 life: Return Mehr's Last Captain from your graveyard to the battlefield with a finality counter on it.