Vigilance, trample
As long as there are five or more instant and/or sorcery cards in your graveyard, Lagoroth, Century's Apex has haste and ward {5}.
As long as there are ten or more instant and/or sorcery cards in your graveyard, Lagoroth gets +10/+10.

Equipped creature gets +3/+1.
Whenever a Ruin you control becomes spellcharged, you may attach Landmark Blade to it.
Equip {3}

Landscape Artist gets +2/+2 as long as you control four or more lands with different names.
{2}{G}, {T}, Discard a card, Sacrifice a land: Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Reach
{VP}{VP}{VP}: Laser Technician deals 1 damage to target player, planeswalker, or creature with flying.

{T}: Lavaborn Slug deals 1 damage to target player.
Landfall — Whenever a land you control enters, untap Lavaborn Slug.

Target creature gets +3/+3 and is a Flagbearer in addition to its other types until end of turn. Then if there are six or more creature types among creatures you control, draw a card.

Haste
Landfall — Whenever a land you control enters, Leaping Hatchling gains flying and trample until end of turn.

Solidarity
At the beginning of combat on your turn, target creature you control gets +2/+2, gains indestructible, and becomes an Avatar in addition to its other types until end of turn.

{T}: Add one mana of any color. If you have at least 3 life more than your starting life total, add two mana in any combination of colors instead.

Whenever Leyline Leecher attacks, you may pay {1}. If you do, integrate target card from a graveyard.
Leyline Leecher gets +1/+0 and has flying as long as an instant or sorcery card is integrated onto it.

{T}, Sacrifice Leyshard: Draw a card. Add one mana of any type.

At the beginning of your end step, untap another permanent. Then if it's your first turn of the game or you discarded a card named Leystone of Growth this turn, put a growth counter on that permanent. It gains “{T}: Add one mana of any type.”
Cycling {G}

At the beginning of your end step, Leystone of Storms deals 1 damage to each opponent. Then if it's your first turn of the game or you discarded a card named Leystone of Storms this turn, Leystone of Storms deals 1 damage to any target.
Cycling {R}

Whenever you cast an instant spell, up to one target creature gets +2/+2 until end of turn.
Whenever you cast a sorcery spell, reveal the top card of your library. If its mana value is less than the greatest power among creatures you control, put it into your hand.

This spell costs {2} less to cast if you attacked with a legendary creature this turn.
Exile the top two cards of your library. Until the end of your next turn, you may play those cards.

Equipped creature gets +2/-1.
Equip {1}

{T}: Add {R}{R}{R}. Spend this mana only to cast creature spells. If that mana is spent on a creature spell, it enters with an additional haste counter and decayed counter on it.

{5}: Lightspeed Cruiser becomes an artifact creature until end of turn.
Crew 2

Lightvein Arrow deals 3 damage to any target. Scry 1.

Enchant land
When Lightvein Discovery enters, put a +1/+1 counter on target creature you control.
Enchanted land has “{T}: Add two mana of different colors.”

Menace
Other Elementals you control have menace.

{1}, {T}: Add one mana of any color.
{2}, Sacrifice Living Compass: Draw a card.

Solidarity
Londel Sharpshot can't be blocked by creatures with power 2 or less.

Before equipped creature would assign, deal, or be dealt damage, sacrifice Lum Berry. If you do, equipped creature gets +1/+1 until end of turn.
When you sacrifice Lum Berry, you may exile equipped creature, then return that card to the battlefield under its owner's control. Put a +1/+1 counter on it.
Equip {1}

Choose two —
• Create two Berry tokens.
• Create two 1/1 green Plant creature tokens.
• You gain 1 life for each token you control.