msem-instigator

(Add a quest counter as this enters. Sacrifice after 6.)
Whenever you cast a permanent spell, add a quest counter.
1, 2, 3, 4, 5, 6 — Choose a color that hasn't been chosen. Search your library for a permanent card that's exactly that color, reveal it, and put it into your hand. Then shuffle.
Exile Collect the World Stones. For the rest of the game, you may spend mana as though it were mana of any color.
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Choose one —
• Create two 1/1 white Soldier creature tokens.
• If you spent three or more mana to cast this spell, create five 1/1 white Soldier creature tokens.

Whenever a token creature you control dies, each opponent loses 2 life.

Whenever you draw a card, you may exile the top card of your library.
{3}{U}{U}, Sacrifice Collector of Memories: Shuffle your hand into your library, then put each card exiled with Collector of Memories into its owner's hand.

Creatures you control named Colocolo can't be blocked and have ward {2}.
{U}{U}: Put an inspiration counter on target creature. It's named Colocolo in addition to its other names for as long as it has an inspiration counter on it.

When Colony Queen enters the battlefield, create three 1/1 green Insect creature tokens.
Insect tokens you control have flying and deathtouch.

Trample
Spells and abilities your opponents control can't cause you to sacrifice Colossal Achievement.

Trample
Colossal Greatwurm enters the battlefield with five +1/+1 counters on it.
Whenever a player draws a card, put a +1/+1 counter on Colossal Greatwurm.
Remove three +1/+1 counters from Colossal Greatwurm: Create a 3/3 green Wurm creature token.

Whenever one or more cards are put into your graveyard from your library, exile one of those cards.
Whenever Colossal Hermit deals combat damage to a player, you may cast a card exiled with it without paying its mana cost.

Equipped creature gets +3/+3.
Equip {4}
Equip creature with power 5 or greater {1}

Shimmer (Whenever this creature attacks, create a tapped and attacking token that's a copy of it. Exile the token at the beginning of the end step.)
When Colpah Mystic enters the battlefield, you may discard a card. If you do, creatures you control named Colpah Mystic get +2/+2 until end of turn.

Whenever Combat Technician attacks, create a 1/1 colorless Servo artifact creature token that's tapped and attacking. Then Combat Technician gets +1/+1 until end of turn for each artifact you control.

At the beginning of your upkeep, exile the top card of your library. You may play it this turn if it has mana value 2 or less.
[+1]: Create a 1/1 colorless Servo artifact creature token. If you exiled an artifact or creature card this turn, create two instead.
[0]: Create a Treasure token. If you exiled a card that had a mana ability this turn, create two instead.
[–1]: Comet deals 2 damage to any target. If you exiled an instant or sorcery card this turn, Comet deals 2 damage to any target.

{T}: Add one mana of any color in your commander's color identity.

Lifelink
Partner with Imperator Valtasius (When this creature enters the battlefield, target player may put Imperator Valtasius into their hand from their library, then shuffle.)
At the beginning of your upkeep, return target Soldier card from your graveyard to your hand.

When Commander of the Cavalry enters the battlefield, you may search your library for a creature card with ride, reveal it, and put it into your hand. If you do, shuffle.
{X}, {T}: Put a creature card with ride and mana value X or less from your hand onto the battlefield transformed and attached to another target creature you control without a Steed attached to it.

Creature tokens you control get +1/+1.
{3}{W}: Create a 1/1 white Warrior creature token.

{R}: You may put a Rebel creature card from your hand onto the battlefield. That creature gains haste. Sacrifice the creature at the beginning of the next end step.

{T}: Add {C}.
{T}: Untap target legendary creature you control. Activate only once each turn.

Flash
When Commanding Princess enters the battlefield, choose two —
• Commanding Princess deals 2 damage to any target and you gain 2 life.
• Return target permanent card with mana value 2 or less from your graveyard to your hand.
• Destroy target artifact or enchantment.
• Create a 1/1 colorless Shapeshifter creature token with changeling.

Look at the top five cards of your library. You may reveal a land or Nomad card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
You may play an additional land this turn.

Gain control of target creature until end of turn. Untap it. It gains haste until end of turn.
Rerun (If you cast this from your hand, exile it as it resolves. Whenever a creature you control dies, you may cast this card from exile without paying its mana cost.)

Whenever a player casts a spell, each opponent mills a card.

If a player would draw one or more cards except for the first one they draw in each of their draw steps, they exile a card from their hand before they draw those cards.
{1}, {T}: Until end of turn, you may play target card exiled with Compromised Vault, and you may spend mana as though it was mana of any color to cast that spell.

When Compulsion's Voice enters the battlefield, gain control of target permanent until end of turn. Untap that permanent. It gains haste until end of turn.
Recite {1}{U}{R} (You may cast this creature from your graveyard for its recite cost. If you do, exile it when it enters the battlefield or if it would leave the battlefield.)