msem-instigator

Whenever you cast a noncreature spell, look at the top card of your library. You may put it into your graveyard.
{4}{U}: Draw a card.
At the beginning of your upkeep, if there are twenty-four or more noncreature cards in your graveyard, you win the game.

At the beginning of each player's upkeep, exile target creature that player controls. Return that card to the battlefield under its owner's control at the beginning of the next upkeep.

Surveil 2, then create a tapped X/X green Mutant creature token, where X is the number of card types among cards in your graveyard.

Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.
Menagerie — If there are five or more creature types among creatures you control, scry 3.

Counter target spell. Tap all lands that spell's controller controls and that player loses all unspent mana.

Draw three cards, then manifest a card from your hand. (To manifest a card, put it onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if it's a creature card.)

Attacking creatures get -3/-0 until end of turn.

Search your library for an instant card or a card with flash, reveal it, put it into your hand, then shuffle.
Flashback {5}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Draw two cards.
Flashback—{2}{U}, Discard a card. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Counter target spell with no subtypes. Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

(Add a quest counter as this enters. Sacrifice after 3.)
Whenever you cast a noncreature spell, add a quest counter.
Draw a card, then discard a card.
Return up to two target instant and/or sorcery cards from your graveyard to your hand.
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Counter target permanent spell. (Then exile this card. You may cast the creature later from exile.)

Draw a card, then draw cards equal to the number of cards named Sea Cache in your graveyard.

When Seafloor Casket enters and when you sacrifice it, target player mills two cards.
{1}{U}, Sacrifice Seafloor Casket: Draw a card.
Cycling {2} ({2}, Discard this card: Draw a card.)

{U}, Sacrifice Seal of Insights: Look at the top four cards of your library. Put one into your hand and the rest on the bottom of your library in any order.

Reveal the top five cards of your library. You may put an instant or sorcery card from among them into your hand. Put the rest into your graveyard.

At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)
{2}{U}{U}, Sacrifice Search for a New Land: Draw two cards.

This spell can't be countered.
Draw a card.
Reprise {2}{U} (As you cast an instant or sorcery spell, you may exile one card with reprise from your graveyard and pay its reprise cost. If you do, add its effects to that spell.)

Scry 2, then draw two cards. (Look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)

As Secrets of the Orrery enters, choose fact or fiction.
Foresight — Whenever you draw your second card each turn,
• Fact — Target creature can't be blocked this turn.
• Fiction — You may tap target creature. If you do, put a stun counter on it.

Choose one or more —
• Target player draws two cards.
• Counter target spell.

Look at the top two cards of target player's library. Put one of those cards on the bottom of their library and the rest on top.
Fuse (You may cast one or both halves of this card from your hand.)

Take an extra turn after this one. During that extra turn, you may cast spells you own not named See the World from outside the game by tapping an untapped Scout you control in addition to paying their mana costs.
Exile See the World.

Shuffle up to five target cards from your graveyard into your library. Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.

Draw three cards. Then discard two cards unless you discard a land card.