msem-instigator

Whenever an artifact you control is put into a graveyard from the battlefield, create a 4/4 red Dragon creature token with flying.

Whenever a spell or ability causes an opponent to draw a card, draw a card unless that player pays 1 life.

Choose one or all—
• Dreamfire deals X damage to target creature.
• Dreamfire deals X damage to each player.
• Target creature gets +X/+0 until end of turn.

Dreamscape enters the battlefield tapped with two charge counters on it.
{T}: Add {C}.
{T}, Remove a charge counter from Dreamscape: Add one mana of any color.

When Dreamsight Well enters the battlefield, shuffle any number of cards you own from outside the game into your library.
Whenever you cast a creature spell, if you have more cards in your library than each opponent, draw a card.

Whenever an Aura enters the battlefield under your control, draw a card.
You may cast Aura spells from your graveyard if that card wasn't put into your graveyard this turn.

As Drop of Envy enters the battlefield, choose a nonland permanent card name.
All cards not on the battlefield, spells, and permanents with the chosen name are legendary.

Counter target spell.
Spell mastery — If there are two or more instant and/or sorcery cards in your graveyard, that spell's controller reveals their hand. You may exile a nonland card from that player's hand. If you do, that player draws a card.

Dustchoked Outpost enters the battlefield tapped.
When Dustchoked Outpost enters the battlefield, create a 1/1 Scout creature token that's all colors. It gains haste until end of turn. Sacrifice it at the beginning of the next end step.
{T}: Add {R}.

When Earthbreaker Behemoth enters the battlefield, it deals damage equal to its power to up to one target creature you don't control. Excess damage is dealt to that creature's controller instead.

When Earthenlore Disciple enters the battlefield, you may destroy target artifact, enchantment, or land.

{T}, Sacrifice a creature: Search your library for a creature card with mana value 1 and put it onto the battlefield. Then shuffle. Activate only as a sorcery.

{0}: Until end of turn, Eldritch Egg becomes a copy of target permanent card in a graveyard with mana value 6 or less except it's an artifact. Activate only once each turn. (It has no other card types.)

You may cast this spell as though it had flash if you control a Horror creature.
Destroy all non-Horror creatures.

Create three tapped colorless Powercell artifact tokens with “{T}: Add {C}.” Then untap all artifacts you control. At the beginning of the next end step, sacrifice three artifacts.

Flash
Prowess
When Ella enters the battlefield, create two 1/1 blue Wizard creature tokens with prowess.
Whenever you cast a noncreature spell, you may sacrifice a creature. If you do, copy that spell. You may choose new targets for the copy.

{1}, {T}: Exile target creature you control until Elsewhere Mirror leaves the battlefield. (It returns to the battlefield under its owner's control.)
{3}: Choose a permanent card exiled with Elsewhere Mirror. Target creature becomes a copy of that card until end of turn.

When Ema, the Traveler enters the battlefield, reveal the top five cards of your library. Put any number of legendary cards revealed this way into your hand and the rest on the bottom of your library in any order.
{2}{B}: Another target legendary permanent gains indestructible until end of turn.

Whenever you cast a noncreature spell, upgrade Embodied Soul. (Give it one of the listed counters it doesn't already have.)
• Flying
• First strike
• Vigilance
• Lifelink
{W}: Until end of turn, if Embodied Soul isn't a creature, it becomes a 0/0 Spirit Avatar enchantment creature with “This creature gets +1/+1 for each different kind of counter on it.”

Whenever a player casts a spell from their hand, that player exiles it. Then they cast a copy of a card exiled with Embrace the Unpredictable chosen at random without paying its mana cost.

When Encrypted Monument is put into your graveyard from anywhere, you may pay {2} and exile it. If you do, draw two cards.

Each player can't cast more than one spell each turn.
You may cast spells from your hand without paying their mana costs.

{U}, Put a travel counter on Endless Discoveries: Draw a card. This ability costs {1} more to activate for each travel counter on Endless Discoveries.
{3}{U}{U}, Sacrifice Endless Discoveries: Return target instant or sorcery card with mana value less than or equal to the number of travel counters on Endless Discoveries from your graveyard to your hand.

Mill five cards. You may choose up to two nonland cards with mana value 2 or less milled this way. You may cast one without paying its mana cost. Put the rest into your hand.
Coalesce {6}{G}{W} (You may cast this from your graveyard for its coalesce cost. If you do, put it onto the battlefield as a Horror creature after it resolves. Exile it if it would leave the battlefield or not resolve.)
Flying, vigilance

Whenever a permanent you control leaves the battlefield, you may return another card with lesser mana value that shares a type with it from your graveyard to your hand.