msem-instigator

Whenever Daisite Express attacks, draw a card.
Whenever Daisite Express deals combat damage to a player, discard a card.

Slipstream (This creature can't be blocked as long as only creatures with slipstream are attacking.)
When Dancer of the Great Current enters, tap up to one target creature. If you control two or more other creatures that are Merfolk, Wizards, or Rogues, instead return that creature to its owner's hand and put a +1/+1 counter on Dancer of the Great Current.

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.

At the beginning of each opponent's upkeep, exile Daril's Timewalker and up to one other target nonland permanent you control, then return those cards to the battlefield under their owner's control.

[+1]: Until your next upkeep, creatures can't attack you or planeswalkers you control unless their controller pays {2} for each of those creatures.
[–2]: Look at the top two cards of target player's library. Put any number of them on top of that library and the rest on the bottom in any order.
[–6]: Return all nonland permanents you don't control to their owners' hands.

Exile target creature, return it to the battlefield tapped under its owner's control, then choose one —
• Put a +1/+1 counter on it.
• Put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Create a 1/1 blue Pirate creature token or a 2/2 white Dwarf creature token.
Until end of turn, creatures you control gain “Whenever this creature attacks, draw a card, then discard a card unless this creature is a Pirate.”
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This spell costs {2} less to cast if it targets a card in your graveyard that was put there from anywhere this turn.
Exile target instant or sorcery card in your graveyard with mana value X or less. You may cast a copy of that card without paying its mana cost.

Flash
Enchant permanent
Whenever enchanted permanent deals damage to an opponent, conjure a card named Data-Point into your hand. (It's a sorcery that costs {2} with “Draw a card.”)

Flash
When Daughter of Tempests enters, target creature an opponent controls gets -2/-0 until end of turn.
Attain {3}{U} ({3}{U}: Transform this. Spend at least three colors of mana to activate this, and only as a sorcery.)

Target creature gets -4/-0 until end of turn.
Crystallize. (Put a +1/+1 counter on a creature you control or create a Treasure.)

Flash (You may cast this spell any time you could cast an instant.)
When Dazzling Voidmage enters, you may return target attacking creature to its owner's hand.

Counter target spell if it wasn't cast from a player's hand.

Engorge (As this enters, mill three cards, then exile a card from among the milled cards.)
When Deadland Summoner dies, you may put the card it engorged into your hand. If that card is an instant or sorcery card, you may instead cast it without paying its mana cost.

Flying
When Dealer of Pointed Fortunes enters, proliferate. (Choose any number of permanents and/or players with counters on them, then give each another counter of each kind already there.)

Enchant creature
When Deathless Conscription enters, untap enchanted creature.
You control enchanted creature.

When Debt Dignitary enters, tap target nonland permanent. That permanent doesn't untap during its controller's untap step for as long as you control Debt Dignitary.

{T}: Put a flood counter on Decanter of Endless Rivers. Add {U} for each flood counter on it.

Flash
When Decisive Arcanist enters, you may cast target modal instant or sorcery card in your graveyard. Exile that card instead of putting it into your graveyard as it resolves.

Counter target creature spell, planeswalker spell, or activated ability.

Draw a card. Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

Counter target spell with mana value 3 or less. If a spell is countered this way, return it to its owner's hand instead of putting it anywhere else.

Enchant creature
Enchanted creature doesn't untap during its controller's untap step.
At the beginning of the upkeep of enchanted creature's controller, that player mills a card.

Exile target creature. Return that card to its owner's hand at the beginning of its owner's next end step.

Deep-Sea Terror can't attack unless seven or more cards are in your graveyard.