This land enters tapped unless you control one or fewer other lands.
{T}: Add {W} or {U}.
Cycling {2}

Edgeland Market enters tapped unless you control a basic non-Mountain land.
{T}: Add {R}.
{2}{R}, {T}: Create a 0/1 white Goat creature token.

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

First strike, lifelink
When this creature transforms into Eleanor, Kingslayer, exile up to one target creature. If that creature was legendary, put two +1/+1 counters on Eleanor.

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

Ephemeral Mire enters tapped.
{T}: Add {U} or {B}.
{4}{U/B}: Until end of turn, Ephemeral Mire becomes a 3/2 black and blue Horror creature until end of turn and can't be blocked this turn. It's still a land. This ability costs {X} less to activate, where X is your devotion to black and blue. Activate only once each turn.

At the beginning of each combat, until end of turn, creatures you control have base power equal to the greatest base power among creatures you control and have base toughness equal to the greatest base toughness among creatures you control.

This land enters tapped unless you control one or fewer other lands.
{T}: Add {B} or {R}.
Cycling {2}

{1}{R}: Erupting Volcamel and up to one other target creature you control get +2/+0 until end of turn.
Whenever you activate a nonmana ability, if you've spent at least six mana to activate nonmana abilities this turn, Erupting Volcamel deals 2 damage to any target.

{T}: Add {C}.
{2}, {T}: For each color among permanents you control, add one mana of that color.

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Executive Office enters tapped.
{T}: Add {B} or {R}.
{4}: Make a pledge. Activate only as a sorcery.

Ward {2}
Spells and abilities you control that target Fabulous Serpent cost {2} less.
{2}{U}: Creatures you control get +1/+1 until end of turn.

When this land enters, sacrifice it. If you do, search your library for a basic Swamp or Mountain card, put it onto the battlefield tapped, then shuffle.
{2}{B}{B}{R}{R}, Discard this card: Create a 4/4 red Error creature token with menace.

Field Laboratory enters tapped.
{T}: Add {G} or {U}.
{1}, Discard Field Laboratory: Scry 2.

Flying
{T}: Add {C}.
Spellcharge 4

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

When this land enters, sacrifice it. If you do, search your library for a basic Swamp or Forest card, put it onto the battlefield tapped, then shuffle.
{2}{B}{B}{G}{G}, Discard this card: Return up to one target creature card and up to one target enchantment card from your graveyard to your hand.

This land enters tapped unless you control one or fewer other lands.
{T}: Add {B} or {G}.
Cycling {2}

Fortress Arena enters tapped.
{T}: Add {R} or {W}.
{2}{R}{W}, {T}, Sacrifice Fortress Arena: Draw a card.

Whenever you attack, create a 1/1 colorless Soldier creature token that's tapped and attacking.

Frigid Highlands enters tapped unless you control an Island.
{T}: Add {R} or {G}.

{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast Shrine spells or activate abilities of Shrines.

{T}: Add {C}.
{2}, {T}: Add two mana of different colors.
{4}, {T}: Look at the top X cards of your library, where X is the number of different color pairs among permanents you control that are exactly two colors. Put one of those cards into your hand and the rest on the bottom of your library in a random order.