When this land enters, sacrifice it. If you do, search your library for a basic Plains or Swamp card, put it onto the battlefield tapped, then shuffle.
{2}{W}{W}{B}{B}, Discard this card: Exile target nonland permanent.

This land enters tapped. As it enters, choose a color.
When this land enters, return a land you control to its owner's hand.
{T}: Add {C} and one mana of the chosen color.

You may have Karina's Substitute enter as a copy of a creature you control, except it's 1/4 and a Toy in addition to its other types.

Equipped creature gets +1/+0.
Whenever equipped creature deals combat damage to a player, put a stun counter on target permanent they control.
Equip {2}

Flying
Whenever this Vehicle attacks, reveal cards from the top of your library until you reveal a nonland card. Exile that card and put the rest on the bottom of your library in a random order. You may cast the exiled card without paying its mana cost if the resulting spell has mana value 2 or less.
Crew 2

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

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.

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

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

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.

{2}: Magnetic Mystery gets +1/+0 until end of turn. Activate only as a sorcery.
As long as you control another artifact, Magnetic Mystery has flying.

When Magnetic Snuffler enters, return target Equipment card from your graveyard to the battlefield attached to Magnetic Snuffler.
Whenever you sacrifice an artifact, put a +1/+1 counter on Magnetic Snuffler.

{1}: Untap Magnetling.
{1}: Magnetling can't be blocked by creatures with power 2 or less this turn.
{1}: Choose a card type. Magnetling loses that type until end of turn.
{1}: Magnetling gets +1/-1 or -1/+1 until end of turn.

{2}, {T}: Exile target creature you control, then reveal the top card of your library. If the revealed card is a creature card, put it onto the battlefield. Otherwise, return the exiled card to the battlefield under its owner's control.

At the beginning of combat on your turn, you may have target Advisor you control get +2/-1 until end of turn.

Mass of Remains's power is equal to the total number of permanent cards you own in your graveyard and in exile.
Spellcharge 3

Matter Harvester has protection from mana values less than the number of artifacts you control.
Whenever a nonland permanent you don't control leaves the battlefield, create a 1/1 colorless Cyborg artifact creature token.