msem-instigator

At the beginning of each player's upkeep, put a darkness counter on target nonland permanent they control. That permanent is black for as long as it has a darkness counter on it. Then if there are five or more nonland permanents on the battlefield and they are all black, you may exile Tahiel, Elder Kalku and gain control of target creature or planeswalker.

Noncreature, nonland permanents you control have hexproof.
Tap five untapped noncreature, nonland permanents you control: Scry 3, then draw three cards.

When Tempting Gate enters the battlefield, 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.

Flash
When Tenvilu, Earthen Warden enters the battlefield, other creatures you control get +2/+2 and gain hexproof and indestructible until end of turn.

Legacy (You may play this side of this card only from your graveyard. Exile it if it would be put into a graveyard or not resolve.)
Return all creatures to their owners' hands. Each player discards two cards.

This spell can't be countered.
Whenever a creature you control with power 5 or greater attacks alone, it deals damage equal to its power to each opponent and to each other creature and planeswalker.

Indestructible
Spells you cast from your graveyard cost {6} less to cast.
Whenever you attack, you may cast any number of target cards from your graveyard this turn. If a spell or permanent that was cast this way would be put into a graveyard, exile it instead.

When To Go Beyond enters the battlefield, draw a card, then choose a card name.
{2}{U}: Reveal a card you own from outside the game with the chosen name and put it on top of your library.

When Treacherous Warden enters the battlefield, search your library for a card, put into your graveyard, then shuffle.
Whenever a creature enters the battlefield from your graveyard, each opponent loses 2 life and you gain 2 life.

Mountains you control have “{T}: Add {R}{R}.”
[+1]: Exile the top card of your library. You may play that card until the end of your next turn.
[–2]: Conjure six cards named Scorch. Shuffle them and your hand into your library, then draw two cards.

When Twilight of the Intisuyu enters the battlefield, draw a card, then choose a card name.
Permanents you control with the chosen name have lifelink and ward {1}.

Trample, ward {1}
Whenever you gain life, put a +1/+1 counter on Unrelenting Noble.
{1}, Sacrifice a permanent: You gain 2 life.

Ward {1}
Other Scouts you control get +1/+1.
Whenever three or more Scouts you control attack, draw a card.

When Valley's Majesty enters the battlefield, draw a card, then choose a card name.
Nonbasic lands you control with the chosen name have “{T}: Add two mana of any one color.”

When Veins of the Intisuyu enters the battlefield, draw a card, then choose a card name.
Whenever you cast a spell with the chosen name, search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Choose one —
• Destroy target artifact or enchantment with mana value 3 or less.
• You gain 3 life. Draw a card.

Legacy (You may play this side of this card only from your graveyard. Exile it if it would be put into a graveyard or not resolve.)
Volcano Sacrifice deals damage to target creature or planeswalker equal to the number of creature cards in your graveyard.

Legacy (You may play this side of this card only from your graveyard. Exile it if it would leave the battlefield or not resolve.)
Whenever you attack, you may discard up to X cards, where X is the number of attacking creatures you control. Draw a card for each card discarded this way.

Whenever you cast a spell from your graveyard, you may sacrifice a creature. If you do, copy that spell. You may choose new targets for the copy.

Target player discards a card. Until your next turn, whenever that player casts a spell, they discard a card.

Flying, deathtouch
{2}{B}{B}, Exile Weku, Malignity Spirit from your graveyard with four pact counters on him: You draw four cards and you gain 4 life.
At the beginning of your upkeep, if Weku is exiled with a pact counter on him, remove a pact counter from him. Then if Weku has no pact counters on him, you lose the game.

Enchantments you control have hexproof.
Wira Inti, Skyfather can't attack or block unless you control five or more enchantments.
At the beginning of combat on your turn, up to two other target enchantments you control each become a creature in addition to their other types and have flying, vigilance, and base power and toughness 4/4.

When Worship of the Sun enters the battlefield, draw a card, then choose a card name.
At the beginning of your upkeep, you may tap three untapped creatures you control. If you do, search your library for an enchantment card with the chosen name, put it onto the battlefield, then shuffle.

Legacy (You may play this side of this card only from your graveyard. Exile it if it would be put into a graveyard or not resolve.)
Each opponent sacrifices a creature for each spite counter they have. If they didn't sacrifice any creatures this way, they discard that many cards instead.

Legacy (You may play this side of this card only from your graveyard. Exile it if it would be put into a graveyard or not resolve.)
For each of up to two target creatures you control, put a +1/+1 counter on it, then you may have it deal damage equal to its power to any target.