msem-instigator

Resolute — At the beginning of combat on your turn, East Ward Halberdier gains double strike until end of turn if its power is greater than its base power.

When Eaveshoppers enters, each opponent discards a card.
Inspired — Whenever Eaveshoppers becomes untapped, exile up to one target card from a graveyard. If a land card is exiled this way, put a +1/+1 counter on Eaveshoppers.

Whenever another creature you control dies, each opponent loses 1 life. If it had two or more counters on it, draw a card.
{1}{U}{B}: Put a -1/-1 counter on target creature you control and target creature an opponent controls. Activate only as a sorcery.

Whenever a land you control enters, upgrade target creature. (Give it one of the listed counters it doesn't already have.)
• +1/+1
• Vigilance
• Trample

{1}{G}, Sacrifice Edgeland Savant: Draw a card. You may put a land card from your hand onto the battlefield tapped.

{W}{B}, {T}: Exile target nonland permanent until Ediam, the Inside Man leaves the battlefield. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any type to cast that spell.

Whenever you cast an artifact or enchantment spell, scry 1, then create a 1/1 white Merfolk creature token.
Whenever you cast a Merfolk spell, look at the top card of your library. If it's an artifact or enchantment card, you may reveal it and put it into your hand.

Lifelink
Effigy of Morality gets +1/+1 as long as your fealty to Plains is four or greater. (Each Plains you control counts towards your fealty to Plains.)

Flying
Effigy of Wisdom gets +1/+1 as long as your fealty to Islands is four or greater. (Each Island you control counts towards your fealty to Islands.)

Haste
When Efreetspeaker dies, create a Treasure token. (It's an artifact with “{T}, Sacrifice this artifact: Add one mana of any color.”)

When Eighth-Life Companion enters, put two +1/+1 counters on target creature you control.
Recite {1}{W} (You may cast this from your graveyard for its recite cost. If you do, exile it when it enters or if it would leave.)
Revive {2}{W}{W} ({2}{W}{W}, Exile this card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

Whenever another creature you control enters, target instant or sorcery card in your graveyard with mana value less than or equal to that creature's power gains flashback until end of turn. The flashback cost is equal to its mana cost. (You may cast that card from your graveyard for its flashback cost. Then exile it.)

When El, Humble Apprentice enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Chosen one ({W}{U}{B}{R}{G}: Transform this permanent.)

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.

Flying
When Elder Roc enters, nourish 1. (To nourish 1, either put a +1/+1 counter on this creature or create a 1/1 white Citizen creature token.)

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.

Hexproof, reach

When Elven Guard becomes the target of a spell you control, you may pay {G}. If you do, transform it.

Defiance (Whenever this creature takes damage, if it survives and wasn't defiant, put a +1/+1 counter on it and it becomes defiant.)
{4}{R}: Elvish Verseblade deals 1 damage to each creature. Activate only as a sorcery.

First strike
{1}{R}: Transform Embercut Duelist. Activate only if it's attacking.

When Emberling dies, it deals 1 damage to any target.

When Endrison Harvester enters, you may search your library for a Swamp card, reveal it, put it into your hand, then shuffle.
{1}{B}: Endrison Harvester gets +1/+1 until end of turn.

{U}: If Engrossed Reader doesn't have flying, put a flying counter on it.
{1}{U}: If Engrossed Reader has flying, draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on Engrossed Reader.
{1}{U}{U}: If Engrossed Reader has a +1/+1 counter on it, it becomes a copy of another target creature until end of turn.

When Enigma Mystic enters, mill three cards.
Enigma Mystic gets +2/+0 as long as there's a Shaman card in your graveyard.
{T}: Add one mana of any color. Activate only if you control another Shaman.