msem-instigator

Once each turn, when another nontoken creature is returned to your hand from the battlefield, you may create a token that's a copy of that creature.

Flying
When Morkrut Gryff dies, surveil 1, then draw a card. (To surveil 1, look at the top card of your library. You may put that card into your graveyard.)
Foreshadow {5}{U}{U} (You may cast this spell for its foreshadow cost. If you do, also trigger its “dies” abilities when it enters.)

When Morose Bohemian enters, scry 1, then draw a card.

Target opponent mills five cards, then you exile up to two instant and/or sorcery cards from that player's graveyard. You may cast those cards for as long as they remain exiled, and you may spend mana as though it were mana of any type to cast them.

Flying
When Mother of Owls dies, you may return target creature an opponent controls to its owner's hand.

Target creature can't be blocked this turn.

Look at the top three cards of your library, then put them into your graveyard or back on top of your library in any order.
Draw two cards.

Whenever Murkriver Trawler attacks, until end of turn, target Rogue gains “Whenever this creature deals combat damage to a player, draw a card.”

Return target creature to its owner's hand. You may shuffle up to four target cards from your graveyard into your library.

Draw two cards.
Crystallize. (Put a +1/+1 counter on a creature you control or create a Treasure.)

Counter target enchantment, instant, or sorcery spell. (Then exile this card. You may cast the creature later from exile.)

Search your library for up to two cards with different names and reveal them. Target opponent chooses one of those cards. Put the chosen card into your graveyard and the rest into your hand. Then shuffle.

When Mystic Mackerel enters, you may have target player mill two cards.
{3}{U}, Sacrifice Mystic Mackerel: Return target enchantment, instant, or sorcery card from your graveyard to your hand.

Whenever you cast a spell from exile, you may draw a card.
At the beginning of your upkeep, you may reveal the top card of your library.

When Mystic Seer enters, each player may scry 1.
{2}{U}: Draw a card, then discard a card.

Each player mills three cards. For each instant and/or sorcery card milled this way, draw a card.

Flying
Whenever Naiala's Guide deals combat damage to a player, draw a card, then discard a card.

[+1]: Copy the next spell you cast this turn. You may choose new targets for the copy.
[–3]: 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.
[–8]: You get an emblem with “You may cast spells without paying their mana costs.”

{2}{U}, Sacrifice Nameless Drifter: Draw a card for each creature that left the battlefield this turn.

Flying
Civilized — Whenever Namuzzar's Disciple attacks, if you control an artifact, a creature, and an enchantment, put a +1/+1 counter on Namuzzar's Disciple.

Flying
When Namuzzar's Iterator enters, you may return an artifact or enchantment you control to its owner's hand.

Transcend (Activate as a sorcery to gain the next type and a +1/+1 counter.)
Flying
{1}{U}: Demigod — Whenever a creature you control deals combat damage to a player or planeswalker this turn, draw a card.
{3}{U}{U}: God — Create an X/X blue Spirit creature token, where X is the number of cards in your hand. Put a flying counter on it.

Flying
{2}{U}, {T}: Target creature gets +1/+1 and gains flying until end of turn. Activate only as a sorcery.

When this creature enters, draw a card.

Flying
Nectarkin enters with a +1/+1 counter on it.
Whenever Nectarkin deals combat damage to a player, permutate. (You may remove a counter from a creature you control. If you do, put two +1/+1 counters on a different creature you control.)