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

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

Level up {2}{U}
[level 1-2] Whenever a land you control enters, cache the top card of your library face down.
[level 3+] Whenever a land you control enters, draw a card.

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.

{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.

This land enters tapped.
{2}{W}{B}, {T}: Surveil 1.

Looming Skyscrapers enters tapped.
{T}: Add {B} or {G}.
{4}: Make a pledge. Activate only as a sorcery.

When this land enters, sacrifice it. If you do, search your library for a basic Island or Swamp card, put it onto the battlefield tapped, then shuffle.
{2}{U}{U}{B}{B}, Discard this card: Surveil 2, then draw two cards.

As this land enters, you may pay 2 life. If you don't, it enters tapped.
{T}: Add {W} or {U}.

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}

Lunar Plateau enters tapped.
{T}: Add {W} or {B}.
{1}, Discard Lunar Plateau: Scry 2.

Whenever this Subroutine runs, you may pay {X} and sacrifice it. If you do, draw a card, then add X mana in any combination of colors.

This land enters tapped.
{2}{B}{G}, {T}: Surveil 1.