msem-instigator

{T}: Draw a card, then discard a card.
Whenever you cast an instant or sorcery spell, untap Exchange Scholar.

Counter target creature spell.
Draw a card.

First strike, vigilance, lifelink

When Exergetic Chains enters, exile target nonland permanent you don't control and up to one target creature you control until Exergetic Chains leaves the battlefield.

Vigilance
{G}, {T}: Exile up to three target cards from graveyards. If two or more of those cards share a card type, create a 1/1 colorless Servo artifact creature token.

Put target spell on top of its owner's library.
Each player conjures a card named Fatigue and puts it on top of their library. (It's a colorless sorcery that costs {2} with “Draw a card.”)

If a player would draw one or more cards, instead that player draws that many cards plus one and loses 1 life.

Whenever you cast a spell, put a lore counter on Exhilarating Prescience.
At the beginning of your upkeep, exile the top X cards of your library, where X is the number of lore counters on Exhilarating Prescience. You may play those cards until your next turn.

When Exiled Necromancer enters, return target permanent card with mana value 1 or less from your graveyard to the battlefield.

Infiltrate (Whenever one or more attacking creatures you control aren't blocked, this creature gets +1/+1 until end of turn.)
When Exiled Warband dies, draw a card.

As Exodus of the Khalizors enters, choose Rehison or Danuri.
• Rehison — Whenever an Elf you control enters, you may move a counter from target creature onto another target creature.
• Danuri — Soldiers you control have trample.

Until end of turn, whenever you cast an instant or sorcery spell, you may discard a card. If you do, draw a card.

Creatures you control get +2/+0 until end of turn. Scouts you control gain trample until end of turn.

Other Elves you control get +1/+1.
Whenever another Scout you control deals combat damage to a player, you may reveal the top card of your library. If it's a land card, put it onto the battlefield tapped.

When Expedition Outfitter enters, create a 1/1 colorless Servo artifact creature token.
At the beginning of each end step, if an artifact was put into your graveyard from the battlefield this turn, Expedition Outfitter deals 1 damage to each opponent.

Foretell {U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)
Target creature gets -4/-0 until end of turn.
Draw a card.

When Expensive Tutor enters, tap target land. It doesn't untap during its controller's next untap step.

Enchant opponent
At the beginning of enchanted player's upkeep, you create a 3/2 green Crocodile creature token with trample if enchanted player has 10 or less life. Otherwise, they lose 2 life.

When Exquisite Artisan enters, judge target noncreature artifact you control. If you honor it, it becomes a 0/0 Construct artifact creature with flying. (Honor it by putting a +1/+1 counter on it or condemn it by sacrificing it to draw a card.)

Choose one or both —
• Counter target spell.
• Exile target permanent you control, then return it to the battlefield under your control.

Stampede — Whenever Exuberant Hunter and a creature with greater power attack, draw a card.

{2}, {T}: Tap target creature. This ability costs {2} less to activate if you control an enchantment.

Your opponents play with their hands revealed.
At the beginning of your end step, choose a card name.
You and spells you control can't be targeted by sources your opponents control with a name chosen by Eye of Dismay.
Eye of Dismay has protection from names chosen by it.

Exile target spell or nonland permanent. That card's owner casts it without paying its mana cost at the beginning of the next turn's upkeep.