msem-instigator

Reveal the top three cards of your library. Target opponent may have you put those cards into your hand. Otherwise, put those cards into your graveyard, then draw three cards.

{2}{G}: Cryptozoologist voyages. (If it isn't blocking or targeted by another spell or ability, it phases out.)
Whenever Cryptozoologist phases in, you may put a creature card from your hand onto the battlefield until Cryptozoologist leaves the battlefield. (It returns to your hand if it's still on the battlefield.)

Double strike
{3}{W}: Arm target creature you control. Activate only as a sorcery. (Create a colorless Equipment artifact token with “Equipped creature gets +1/+0” and equip {2}, then attach it to that creature.)

Flash
When Culi-Sae Mesmer enters the battlefield, return all permanents attached to target permanent or player to their owners' hands.

At the beginning of combat on your turn, target embattled creature you control gets +1/+1 and gains vigilance and indestructible until end of turn. (A creature is embattled if it has a counter on it or has a permanent you control attached to it.)

Flash (You may cast this spell any time you could cast an instant.)
When Culi-Sae Transfigurer enters the battlefield, switch target creature's power and toughness until end of turn.

Equipped creature gets +2/+1 and has menace.
Whenever equipped creature deals combat damage to a player, they sacrifice two permanents.
Equip—{2}, Sacrifice a creature.

Lifelink
Whenever you sacrifice a nonland permanent, you may pay {1}. If you do, you draw a card and you lose 1 life.

First strike
Aura spells and spells with fabled you cast cost {1} less to cast.
Equip costs you pay cost {1} less.

When Curio Pavilion enters the battlefield, create two Treasure tokens. (They're artifacts with “{T}, Sacrifice this artifact: Add one mana of any color.”)
Whenever an artifact you control leaves the battlefield, you may discard a card. If you do, draw a card.

At the beginning of your first upkeep each turn, choose one —
• This turn, replace your precombat main phase with an additional upkeep step.
• This turn, replace your postcombat main phase with an additional combat phase.

{1}{B}: Target creature you control must be blocked this turn if able.
{1}{G}: Target creature you control can't be blocked by more than one creature this turn.

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
{3}{G}: Da'Lang gets +2/+2 until end of turn. If you're in a renaissance, all creatures able to block Da'Lang this turn do so. Activate only once each turn.

Dance of Dragons deals 4 damage divided as you choose among up to two targets. When one or more permanents dealt damage this way die this turn, draw a card. This ability triggers only once.
Showcase {5}{U}{R} (Then if you cast this for its showcase cost, create a 1/1 red Bard creature token that can't block and exile this. Whenever it attacks, you may cast a free copy of this.)

Equipped creature gets +2/+2.
Equip {3}

Whenever equipped creature attacks, create a token that's a copy of it and that's tapped and attacking, except that token isn't legendary if equipped creature is legendary. Exile that token at end of combat.
Equip {3}

Whenever Dapper Ragamuffin attacks, it gets +2/+0 until end of turn if you control another attacking Pirate.

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
Return target nonland permanent to its owner's hand. If you're in a renaissance, that permanent's owner puts it on the top or bottom of their library instead.

Flying
Whenever you gain life, target creature an opponent controls gets -1/-1 until end of turn.

{B}, {T}, Pay 1 life, Discard a card, Sacrifice Dark Rite Cultist and another creature: Create a 5/5 black Demon creature token with flying.

Flying
At the beginning of your upkeep, if you have at least two more cards in hand than any opponent, scry 1.

Dawn Siege deals 4 damage to target creature and 2 damage to each other creature.

{2}{G}{U}: Target creature you control voyages. (If it isn't blocking or targeted by another spell or ability, it phases out.)
Whenever a creature you control phases in, draw a card.

Target creature gets +2/+2 and gains first strike until end of turn.
Metamorph {R} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up and cast it at any time for its metamorph cost.)

Tap two untapped Elves you control: Add {G}{G}.
{6}{G}{G}: Create an 8/8 green Elemental creature token.