msem-instigator

Whenever Ekebram the Scholar becomes untapped, draw a card.
Whenever you draw your third card each turn, you may transform Ekebram.

When Ekebram's Scribe enters, scry 2. (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.)

Indestructible
Whenever a creature you control becomes untapped, draw a card.

Exile target permanent, then return that card to the battlefield under its owner's control.

When Elder Prophesier enters, look at the top five cards of your library. You may reveal a Curse card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Whenever Chian becomes the target of a spell or ability you control, create a 2/2 blue Drake creature token with flying. This ability triggers only once each turn.

You may reveal an Avatar or planeswalker card you own from outside the game and put it into your hand.

Primal {U} (During your turn, you may cast this spell for {U} instead of playing a land.)
Counter target spell.

Reverberate {1}{U} (When you cast this spell, copy it if you paid its reverberate cost. You may choose new targets for the copy.)
Until end of turn, target creature loses all abilities and becomes a blue Elemental with base power and toughness 3/3.

Counter target spell, activated ability, or triggered ability unless its controller pays {X}. (Mana abilities can't be targeted.)

Hexproof
When Elusive Devout enters, choose one —
• Put a +1/+1 counter on Elusive Devout.
• Create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

If a permanent would deal damage to Elusive Fatecrafter, instead prevent that damage and exchange control of Elusive Fatecrafter and that permanent.

Flash
{U}, Put Elusive Hunter into its owner's library second from the top: Counter up to one target spell unless its controller pays {2}.

Flash
When Elusive Illusionist enters, target attacking creature gets -2/-0 until end of turn.

{1}{U}: Exile Elusive Monkey. Return it to the battlefield under its owner's control at the beginning of the next end step.

Foresight — Whenever you draw your second card each turn, Elusive Sage can't be blocked this turn.

{1}: Look at the top card of your library.
{G}, {T}, Mill a card: Untap another target creature.

Enchant artifact or creature
When Embed enters, tap enchanted permanent.
Enchanted permanent doesn't untap during its controller's untap step.

Flying
Other Elementals you control get +0/+1 and have flying.

Target player shuffles up to three target cards from their graveyard into their library.
Acquiesce (If you cast this spell from your hand, exile it as it resolves. When one or more creatures you control deal combat damage to an opponent, you may cast this card from exile without paying its mana cost.)

Flash
When Emissary of Dark Tides enters, you may return target noncreature spell or tapped creature to its owner's hand.

Whenever you cast a spell, if you cast it for an alternative cost or cast it from anywhere other than your hand, create two 1/1 blue Elemental creature tokens with flying. (Reconstruct and rhapsody are alternative costs, hybrid costs are not.)

Draw four cards.
Metamorph {3}{U}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up and cast it at any time for its metamorph cost.)

Return all nonland permanents to their owners' hands.

As an additional cost to cast this spell, you may tap
any number of untapped Angels and/or Nephilim you control. This spell costs {1} less to cast for each creature tapped this way.
Flying, vigilance
When Empyrean Scholar enters, each creature tapped to pay its additional cost becomes a 4/4 Angel creature with flying and vigilance. (This effect lasts indefinitely.)