msem-instigator

Draw a card for each creature you control.
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.)

Whenever you make first contact, exile the top card of your library. You gain life equal to its mana value. You may play that card until the end of your next turn. (You make first contact the first time each turn you cast a spell with a name not in your graveyard or control already.)

Whenever you cast a spell during an opponent's turn, put a +1/+1 counter on Entelan Duelist.
{2}{U}{R}, Remove two +1/+1 counters from Entelan Duelist: Copy target instant or sorcery spell you control. You may choose new targets for the copy.

Whenever you make first contact, Entelan Idealist gets +2/+2 until end of turn. (You make first contact the first time each turn you cast a spell with a name not in your graveyard or control already.)

When Equinox Sprite enters, return target card from your graveyard to your hand.

Wither (This deals damage to creatures in the form of -1/-1 counters.)
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)

Put a -1/-1 counter on target creature.
Draw a card.

Search your library for a land that doesn't have the same name as a land you control, reveal it, put it into your hand, then shuffle. (Then exile this card. You may cast the creature later from exile.)

Flying
{3}{W}, {T}: Exile another target creature you control, then return that card to the battlefield under your control.

When Ethereal Pact enters, each player shuffles their hand and graveyard into their library, then draws seven cards.
Each player can't cast more than one spell each turn.

Put target creature or planeswalker into its owner's library third from the top. Its controller creates a 1/1 white Spirit creature token with flying.

Flash
When Expedition Duo enters, if you cast an Adventure spell or a permanent you controlled explored this turn, draw a card.

Advance costs you pay cost {1} less.
You may activate advance abilities of permanents you control any time you could cast an instant.

At the beginning of your upkeep, choose one. If you control seven or more differently named permanents, choose two instead.
• Draw a card.
• Explore the Multiverse deals 2 damage to target player.
• Create a 1/1 white Scout creature token.

Unveil {3}{G}{W} ({3}{G}{W}: Transform this. Unveil only as a sorcery.)

Whenever a creature blocks or becomes blocked by Faceless Virtue, that creature loses all abilities until end of combat.

Lifelink, haste
At the beginning of your end step, Fae-Frill Fox deals X damage to target player, where X is the number of times you gained life this turn.

This spell costs {1} less to cast for each permanent sacrificed this turn.
Destroy target noncreature permanent.

Flying, lifelink
Fallen Celestial can't block or be blocked by Angels, Demons, or Faeries.
At the beginning of each opponent's upkeep, that player loses 1 life and creates a 1/1 black Faerie creature token with flying.

Trample
Fallen Warden's power and toughness are each equal to the number of creature cards in all graveyards.

Codex — Fox of the Orange Orchard; Sludge-Gill Fox; Thundermane Fox; Firemane Fox; Sun-Eyed Fox; Moon-Rune Fox; Leafcrowned Fox; Icecrowned Fox; Fae-Frill Fox. (As this enters, conjure its contents into a shuffled face-up additional library.)
You may spend mana as though it were mana of any color to cast this codex's contents.
Whenever a Fox you control enters, you gain 1 life.

Choose one —
• Exile target creature with flying.
• Exile up to three target cards from a single graveyard. Draw a card.

Target creature gains double strike until end of turn. Mill a card.

When Festering Shipwreck enters, create a Vial token. (It's an artifact with “{1}, Sacrifice this and another permanent: Draw a card. Activate only during your turn.”)
At the beginning of each player's upkeep, that player sacrifices a nonland permanent.

Destroy target creature or planeswalker. (Then exile this card. You may cast the sorcery later from exile.)