msem-instigator

Conjure a card named Ancestral Recall, a card named Time Walk, and a card named Timetwister into your main library, then shuffle.
Draw three cards. Exile Power Control.

You may put a card you own from outside the game into your hand. Add {B}{B}. You may cast only one more spell this turn. Exile Power From Beyond.

(Activate each submodule once as a sorcery. When this enters, activate one submodule for free.)
{B}{B}{B}: Ambitous
Search your library for a card, put it into your hand, then shuffle. You lose 3 life.
{B}{B}{B}: Ruthless
Destroy target creature or planeswalker.
{B}{B}{B}: Determined
Power Module gains “At the beginning of your upkeep, you draw a card and you lose 1 life.”

Flash
Enchant creature you control
Enchanted creature gets +3/+3 and has lifelink and indestructible.

{2}{G}{G}, Sacrifice a creature: You gain life equal to the sacrificed creature's power or toughness, whichever is greater. Then draw cards equal to the sacrificed creature's power or toughness, whichever is lower. (If the sacrificed creature's power and toughness are equal, the amount of life you gain and cards you draw is equal.)

When Precursor Custodians enters, exile up to one target creature. As long as that card remains exiled, its owner may cast it. A spell cast this way costs {2} more to cast.

Nontoken creatures get -2/-2 until end of turn.
Fuse (You may cast one or both halves of this card from your hand.)

Create three 2/2 white Cat creature tokens.
Fuse (You may cast one or both halves of this card from your hand.)

Flash
When Pride of Thorns enters, it gets +3/+3 until end of turn.

Spells your opponents cast cost {2} more to cast for each card with the same name as that spell in that player's graveyard and for each nonland permanent on the battlefield with the same name as that spell.

{2}, {T}, Sacrifice a creature: Each opponent loses 2 life. You gain life equal to the life lost this way.

Reveal the top seven cards of your library. You may put a creature card from among them onto the battlefield. Put the rest into your graveyard. Then flip a coin. If you win the flip, return Primal Evocation to its owner's hand.

Primal {1}{G} (During your turn, you may cast this spell for {1}{G} instead of playing a land.)
Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle.

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.)

When Primordial Gorran enters, if {B} was spent to cast it, put a +1/+1 counter on it for each creature card in your graveyard.

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)
Flying
Dragon spells you cast have cascade.

Creatures you control get +1/+1 for each color among permanents you control.

Double strike
Concord — Pristine Duelist gets +2/+1 as long as there are four or more card types among permanents you control.

Creatures can't attack you unless their controller pays {2} for each of those creatures.
At the beginning of each opponent's end step, if you didn't lose life this turn, you get a glory counter. (You lose glory counters before life. A player with ten or more glory counters wins the game.)

Vigilance, trample
Prized Marshcroaker can block an additional creature each combat.

Reveal the top card of your library and put that card into your hand. If it's a permanent card with mana value X or less, instead you may put it onto the battlefield. If you do and fewer than seven permanents have been put onto the battlefield this way, repeat this process. X can't be 0.

Choose two or four —
• Search your library for a Demon card, reveal it, put it into your hand, then shuffle. You lose life equal to its mana value.
• Sacrifice a creature. If you do, draw two cards.
• Each opponent loses 2 life and you gain 2 life.
• Conjure a card named Fatigue and put it on top of your library. (It's a colorless sorcery that costs {2} with “Draw a card.”)

Flying
Whenever a creature you control attacks alone, choose one —
• Exile target creature with power less than that creature's power.
• Put two +1/+1 counters on that creature.
• That creature gains first strike and lifelink until end of turn. Untap it.

Search your library for a nonland card, reveal it, and put it into your hand, then shuffle. Until the end of your next turn, spells you cast with the same name as that card cost {3} less to cast.

Flying
Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
Other creatures you control get +1/+1 for each +1/+1 counter on Protector of the League.