msem-instigator

Laiyru Shrine enters tapped.
{T}: Add {G} or {U}.
{G/U}, {T}, Sacrifice Laiyru Shrine: Put a +1/+1 counter on target creature you control. Activate only as a sorcery.

Whenever one or more creatures you control deal damage to a player, put a charge counter on Lake of Rage.
{T}: Add {C}.
{T}, Remove a charge counter from Lake of Rage: Add one mana of any color.

({T}: Add {W} or {U}.)
As Lakeside Park enters, you may pay {1}. If you don't, Lakeside Park enters tapped.

{T}, Pay 1 life: Add {U} or {R}.
{2}, {T}, Sacrifice Lamplit Thoroughfare and another permanent: Draw a card. Activate only during your turn.

({T}: Add {B} or {R}.)
Lavatorn Fields enters tapped unless you control a basic Swamp or a basic Mountain.

Whenever equipped creature attacks, put a +1/+1 counter on it.
Equip {2}

As Legacy Foundations enters, you may reveal a Plains or Swamp card from your hand. If you don't, Legacy Foundations enters tapped.
{T}: Add {W} or {B}.

{T}, Pay 1 life: Add {W} or {B}.
{1}, {T}, Sacrifice Legitimate Establishment: Investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

Flying

{T}: Add {C}.
{2}, {T}: For each color among cards in your graveyard, add one mana of that color.

Lieshi Shrine enters tapped.
{T}: Add {W} or {B}.
{W/B}, {T}, Sacrifice Lieshi Shrine: Put a +1/+1 counter on target creature you control. Activate only as a sorcery.

When Lightblessed Claymore enters, attach it to target creature you control.
Equipped creature gets +2/+0 and has lifelink.
Equip {4}

Activated abilities cost {1} more to activate unless they're mana abilities.

{T}, Pay 1 life: Add {B}.
{7}{B}{B}, Exile Ligos, Shadow's Source from your hand: Destroy all creatures you don't control. They can't be regenerated.

Advance {2} (Cast this for {2} to advance it as it enters. {2}: Advance this as a sorcery.)
Equipped creature gets +1/+1 for each artifact you control.
Equipped creature must be blocked by an additional creature for each time it and this artifact have advanced this turn to be blocked.
Equip {3}

Haste
Whenever Living Library attacks, you may draw a card. If you do, discard a card.

{T}: Add {C}.
{3}: Living Planet becomes a 2/2 Elemental creature until end of turn. This ability costs {1} less to activate for each creature you control.

Whenever you draw a card, Living Script gets +1/+1 until end of turn.

Living Vista enters tapped.
{T}: Add {G} or {W}.
{1}, {T}: Add one mana of any color.

{T}: Add {C}.
At the beginning of your end step, if you control three or more enchantments, you may pay {W}. If you do, create a 0/1 white Llama creature token.

{T}: Add {C}.
{3}{W}: Until end of turn, Llereaux's Lair becomes a 1/2 creature. It's still a land. It can't be blocked this turn if {U} was spent to activate this ability, has indestructible if {B} was spent, and gets +2/+1 if {R} was spent.

Menace

Nonartifact spells cost {1} more to cast.

Equipped creature gets +2/+3.
Equip {4}
{2}: Attach Lodestone Sword to target artifact creature you control.

Flying
Crew 2 (Tap any number of creatures you control with total power 2 or greater: This Vehicle becomes an artifact creature until end of turn.)