msem-instigator

Whenever you make first contact, create a 1/1 white Bird creature token with flying. (You make first contact the first time each turn you cast a spell with a name not in your graveyard or control already.)
Whenever three or more creatures you control deal combat damage to a player, create a token that's a copy of another target permanent you control.

Up to two target creature can't block this turn.
Compose (Then if you cast this from your hand, exile it and create a Saga token with “r3—You may cast a copy of this card from exile without paying its mana cost.”)

{T}: Add {C}.
Motley — {T}: Add one mana of any color. Activate only if there are five or more names among nonland permanents you control.

Create a 1/1 white Bird creature token with flying. (Then exile this card. You may cast the creature later from exile.)

As an additional cost to cast this spell, sacrifice a permanent.
Return up to two target cards from your graveyard to your hand. Exile Lu'She Temple Customs.

When Lucien's Trail enters, exile target creature or enchantment an opponent controls.
Sacrifice another permanent: Lucien's Trail becomes a copy of the exiled card until end of turn.

[+1]: Reveal the top card of your library and put that card into your hand. You lose life equal to its mana value.
[+1]: Until end of turn, Lucien, the Grifter becomes a legendary 3/3 black and red Human Warrior creature with deathtouch, lifelink, and indestructible.
[–3]: Exile target artifact or creature. You gain life equal to its mana value.

[+1]: Until your next turn, up to one target creature gets -2/-1 and gains “When this creature dies, merge it under Lucien, the Ravenous. He has its abilities.”
[–2]: Merge target creature under Lucien, the Ravenous. He has that creature's abilities.
[–6]: For each card merged with Lucien, create a token that's a copy of that card, except it has haste.

Reveal the top card of your library. Draw X cards, where X is that card's mana value.

If a triggered ability of equipped creature would trigger, it triggers an additional time.
Equip {2}

Harvest (You may tap any number of creatures you control as you cast this spell. If you do, reduce this spell's mana cost by their total power.)
{T}, Sacrifice a land: Search your library for a land card and put it onto the battlefield, then shuffle.

[+1]: Move a counter from up to one target permanent onto another permanent that shares a type with it.
[–1]: Target creature gets -1/-3 until end of turn.
[–5]: Search target opponent's library for a creature or planeswalker card and put that card onto the battlefield under your control. Then that player shuffles.

When Lumen Cell enters, create a 1/1 white Human creature token, then put a +1/+1 counter on a creature you control.
{1}{W}: Search your library for a card named Lumen Cell, reveal it, put it into your hand, then shuffle.
{6}{W}{W}{W}: You win the game. Activate only if you control four or more permanents named Lumen Cell.

You may return a land you control to its owner's hand rather than pay this spell's mana cost.
Lumenbay Flyer Line enters tapped.
{T}: Add {W}.

Whenever a creature enters, you may tap it. If you do, put a +1/+1 counter on it.

When Lunar Pact enters, target creature attacks during its controller's next combat if able.
Players can't untap more than two nonbasic permanents during their untap step.

When Lunar Vigil enters, draw a card, then scry 2.
If you would draw one or more cards, you may instead put a night counter on Lunar Vigil and draw that many cards minus one.
Sacrifice Lunar Vigil: Target player draws a card and adds {R} for each night counter on it.

Choose target creature, then choose two —
• Put a +1/+1 counter on the chosen creature.
• The chosen creature gains lifelink until end of turn.
• The chosen creature gains indestructible until end of turn.

This spell costs {2} less to cast if you control an Angel, Demon, Faerie, or Spirit.
Exile target creature or planeswalker.

Whenever you cast a spell, for each of that spell's colors, create a 1/1 Scout creature token that's all colors.

Put a +1/+1 counter on target creature. It can't be blocked this turn.(Cast a copy of this spell once while this creature is on the battlefield.)

Destroy target creature that was dealt damage this turn, then create a 3/2 black Mutant Horror creature token.

Target creature gets +3/+3 and gains haste until end of turn.

Lush Coast enters tapped.
{T}: Add {G} or {U}.
{1}, {T}: Add one mana of any color.

Enchant land
Enchanted land has “{T}: Put a +1/+1 counter on target creature you control. Activate only as a sorcery.”