msem-instigator

Deathtouch
Artifacts and creatures your opponents control have “At the beginning of your upkeep, you lose 1 life unless you tap this permanent and have an opponent gain control of it.”

Menace
When Lord of Decay enters, put a -1/-1 counter on it and each creature you don't control.

Other Merfolk you control get +1/+1.
{1}{U}: Target Merfolk gains slipstream until end of turn. (Creatures with slipstream can't be blocked as long as only creatures with slipstream are attacking.)

Rapport — Whenever Lord's Handmaiden and at least one other creature you control become tapped, tap up to one target creature and remove it from combat.

Instant, sorcery, and legendary spells you cast cost {1} less to cast.

When Lost Kitten leaves the battlefield, create a 1/1 white Peasant creature token.

Whenever Lotus Acolyte attacks, it gets +1/+0 and gains lifelink until end of turn.

When Lotus Debutante enters, create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”
{3}{U}: Draw a card.

When Lotus Feaster enters, create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.”

{T}, Mill a card: Add {B} or {G}.
Once each turn, when a creature you control dies or a creature card is put into your graveyard from anywhere other than the battlefield, each opponent loses 1 life.

Ride {2}{W} ({2}{W}: Transform this and attach it to target creature you control without a Steed. Ride only as a sorcery.)

Whenever Loyalist Escort or another Knight or Soldier you control enters, you may choose one that hasn't been chosen this turn —
• Tap target creature an opponent controls.
• Untap target creature you control.

Cadence (Whenever you cast a spell, if its mana value is greater than this creature's power, put a +1/+1 counter on this creature.)
{1}{R}, Remove a +1/+1 counter from Lt. Daisy Saxon: She deals 2 damage to target player or planeswalker.

Lumbering Stoneshell has hexproof as long as it's untapped.

This spell can't be countered.
Trample
Whenever Lumbering Thoctar becomes the target of a spell or ability, counter it. Then put a stun counter on Lumbering Thoctar.
Whenever Lumbering Thoctar becomes untapped, draw a card.

Your opponents can't cast more than one spell each turn.
Identity — Lumi Orthodox gets +1/+2 as long as you control at least two other creatures that share a creature type with it.

Changeling (This card is every creature type.)
{1}: Another target creature you control gains the creature type of your choice until end of turn.
{1}: Change the text of another target creature you control by replacing all instances of one creature type with the creature type of your choice until end of turn.

When you cast this spell, copy it for each color of mana spent to cast it beyond the first.
Flying

Flash
Flying
When Lunar Emissary enters, exile another target creature you control until Lunar Emissary leaves the battlefield.

Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)
{1}{U}, Discard Lusterwing Owl: Return target enchantment to its owner's hand.

When Lustrebloom Diviner enters, create a Treasure token.
At the beginning of each end step, if you spent three or more colors of mana to cast spells this turn, you gain 3 life. If you spent {W}{U}{B}{R}{G}, draw a card.

Whenever Lute Tickler attacks, you may goad target creature defending player controls. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Other Pirates and Rogues you control get +1/+0.
Whenever you attack with three or more Pirates and/or Rogues, tap target creature.

Attacking Pirates and Rogues you control get +1/+0.
{2}{U}: Tap target creature an opponent controls.

When Lysene enters, you may search your library for a card with foretell, reveal it, put it into your hand, then shuffle. The next card you foretell this turn costs {0} to foretell.
Whenever you foretell a card or cast a foretold spell, Pirates and Rogues you control get +1/+0 until end of turn. Up to one target Pirate or Rogue you control can't be blocked this turn.