msem-instigator

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}

{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.

Living Vista enters the battlefield 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.

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

{T}: Add {U}.
{U}, {T}: Target creature gains flying until end of turn.

{T}: Add one mana of any color.
Augmented — As long as you've spent {W}{U}{B}{R}{G} to cast spells this turn, spells you control can't be countered.

Lonely Trail enters the battlefield tapped.
{T}: Add {G} or {W}.
When Lonely Trail enters the battlefield, you may put a loyalty counter on a planeswalker you control.

{1}, {T}, Sacrifice Looking Glass: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Kindle 1—{1} ({1}, Exile this card from your graveyard: Create a 1/1 colorless Elemental creature token. Kindle only as a sorcery.)

When Lost Empire's Legacy enters the battlefield, create two Treasure tokens.
{1}, {T}, Sacrifice an artifact: Return target artifact card from your graveyard to your hand.

Lost Station enters the battlefield tapped.
{T}: Add {U}.
{U}{U}: Until end of turn, Lost Station becomes a 2/2 Horror creature with “This creature can't be blocked.” Activate only if you're horrific.

{T}: Add {C}.
{2}, {T}, Sacrifice Lotus Barrens: Destroy target nonbasic land an opponent controls. You and that land's controller each create a colorless land token named Lotus Spring with “{T}: Add one mana of any color.”

Lotus Lake enters the battlefield tapped.
{T}: Add {C}.
Landfall — {T}: Add one mana of any color. Activate only if a land entered the battlefield under your control this turn.

Love Letters enters the battlefield with X stamp counters on it.
Whenever one or more creatures you control deal combat damage to a player, you may remove a stamp counter from Love Letters. If you do, draw a card.

{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.

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.

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

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

({T}: Add {G} or {U}.)
Lush Oasis enters the battlefield tapped unless you control a basic Forest or a basic Island.

Lush Outcrop enters the battlefield tapped unless another player controls a land that could produce {R} or {G}.
{T}: Add {R} or {G}.

Lush Outskirts enters the battlefield tapped.
{T}: Add {G} or {U}.
{3}{G}{U}: Until end of turn, Frozen Hinterlands becomes a 5/7 green and blue Plant creature with with ward {3} and “Whenever this creature attacks or blocks, torment yourself.” It's still a land. (To torment yourself, lose 3 life unless you discard a card or sacrifice a nonland permanent.)