msem-instigator

When Living Hoard enters, create a Treasure token.
{R}, Sacrifice an artifact: Living Hoard gets +2/+0 until end of turn.

Noncreature permanents you control become 2/2 red creatures in addition to their other types until end of turn.
Fuse (You may cast one or both halves of this card from your hand.)

When Load-Bearing Behemoth dies, destroy target artifact or land.

Loaded Gift deals 3 damage to any target. If any opponent is cursed, Loaded Gift deals 4 damage to that permanent or player instead.

Whenever Lone Freelancer becomes blocked, it deals damage equal to its power to defending player.

Menace
Lonely Devil can't attack or block alone.

Menace
Lonesome Trio can't attack or block unless at least three other creatures you control also attack or block.

Choose target creature, then flip a coin. If you win the flip, Long Shot deals 5 damage to that creature. Otherwise, return Long Shot to its owner's hand.

Flying (This creature can't be blocked except by creatures with flying or reach.)
When Loot Hoarder Dragon enters, gain control of target artifact.

Haste
Whenever you cast an instant spell, exile that card inscribed onto Lord Asharo instead of putting it anywhere else as it resolves.
{T}: Cast a copy of an inscribed card without paying its mana cost.

Create four 1/1 red and white Warrior creature tokens.

Exile the top three cards of your library. For each land card exiled this way, create a colorless artifact token named Lotus Petal with “{T}, Sacrifice this artifact: Add one mana of any color.” Until the end of your next turn, you may cast nonland cards exiled this way.

When Lost Crew enters or dies, crystallize. (Put a +1/+1 counter on a creature you control or create a Treasure.)

Add three mana of any one color.

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.”)

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
Whenever Loyal Firestarter attacks, you may cast an instant or sorcery spell from your hand with mana value less than or equal to Loyal Firestarter's power without paying its mana cost.

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.

Whenever one or more creatures in Luocha Mentor's pack attack, each creature in its pack gets +1/+0 until end of turn. (Two or more creatures you control with equal power are in a pack.)

Menagerie — When Lurking Feralynx enters, if there are five or more creature types among creatures you control, you may search your library for a card named Lurking Feralynx, reveal it, put it into your hand, then shuffle.

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

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.)

As an additional cost to cast this spell, discard a card or pay {2}.

Menace (This creature can't be blocked except by two or more creatures.)
Whenever Maddened Elk attacks, it gets +1/+1 until end of turn for each other attacking creature you control.

Haste
When Maddened Inferno leaves the battlefield, discard a card, then draw two cards.
Evoke {1}{R} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)

As an additional cost to cast this spell, discard a card.
Draw three cards, then discard a card.