msem-instigator

You may reveal a creature card from your hand. Return each creature with power less than the greatest power among creatures you control and creature cards revealed this way to their owners' hands .

Enchant creature
When Charmed Sleep enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Draw three cards, then discard a card.

Reveal the top seven cards of your library. Starting with you, each player chooses a nonland card from among them that hasn't been chosen this way. Put the chosen cards into your hand and the rest on the bottom of your library in a random order.

When Chiheisen, Terrace of Serenity enters, draw a card, then choose a creature card name.
Spells you cast with the chosen name cost {2} less to cast.

Search target opponent's library for six cards and exile them, then that player shuffles. Skip your next turn.

At the beginning of your upkeep, target player mills two cards. If your main library has five or fewer cards in it, that player mills their library instead.

Draw a card, then each player draws a card.

Return up to one target nonland permanent you control and up to one target nonland permanent you don't control to their owners' hands.
Flashback {4}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Wu Xing (Add effects based on the number of colors of mana spent to cast this spell.)
1 | Target creature's owner puts it on the top or bottom of their library.
3 | Return a creature card from your graveyard to your hand.

Draw two cards.
Cycling {2} ({2}, Discard this card: Draw a card.)

Enchant creature
When Claustrophobia enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.

Return target nonland permanent to its owner's hand.
Agonize (You may cast this card from your graveyard by putting a -1/-1 counter on a creature you control in addition to paying its other costs. Then exile this card.)

Return target creature you control and target creature you don't control to their owners' hands.

Cast this spell only during your turn.
Draw a card. Then if an opponent cast a spell this turn, scry 1 and draw an additional card.

Create a 0/0 blue Construct artifact creature token. Put X +1/+1 counters on it, where X is one plus the total number of noncreature, nonland cards in your graveyard.

Enchant artifact
Enchanted artifact is a creature with base power and toughness 3/3 in addition to its other types.
Enchanted artifact has prowess and “Once each turn, when you cast a noncreature spell, you may untap this artifact.”

Target creature gets +2/+0 until end of turn and can't be blocked this turn.

Counter target spell. If that spell is countered this way, put it into its owner's hand instead of into that player's graveyard. That player mills three cards.

Return target creature to its owner's hand.
Kindle 1—{U} ({U}, Exile this card from your graveyard: Create a 1/1 colorless Elemental creature token. Kindle only as a sorcery.)

Submerge each creature you control. At the beginning of the next end step, you may turn any number of face down creatures you control face up. (To submerge a card, exile it, then put it on the battlefield face down under its owner's control as a 2/2 creature.)

Embellish {2}{U} (If you cast this spell for {2}{U}, create a 1/1 blue Thopter artifact creature token with flying when it enters.)
{T}: Target player mills a card. If you control three or more artifacts, that player mills three cards instead.

Tap target creature. It doesn't untap during its controller's next untap step.
Agonize (You may cast this card from your graveyard by putting a -1/-1 counter on a creature you control in addition to paying its other costs. Then exile this card.)

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

This spell costs {X} less to cast, where X is the greatest power among creatures you control.
Tap up to three target creatures. They don't untap during their controller's next untap step.