Reality Fracture Commander

Land

{T}: Add {C}.
{W/U}, {T}: Add {W}{W}, {W}{U}, or {U}{U}.

Mystic Gate

Secrets of Strixhaven Commander

{T}: Add {C}.
{R/W}, {T}: Add {R}{R}, {R}{W}, or {W}{W}.

Rugged Prairie

Mystery Booster 2

{T}: Add one mana of any type that a land you control could produce.

Reflecting Pool

Commander Masters

This land enters tapped unless you have two or more opponents.
{T}: Add {W} or {B}.

Vault of Champions

Starter Commander Decks

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {B} or {R}.

Akoum Refuge

Commander Legends: Battle for Baldur's Gate

{T}: Add {C}.
{1}: This land becomes a 2/2 creature with all creature types until end of turn. It's still a land.

Mutavault

New Capenna Commander

This land enters tapped with two charge counters on it.
{T}: Add {U}.
{T}, Remove a charge counter from this land: Add one mana of any color.

Vivid Creek

Secret Lair Drop

Basic Land — Island

Island

Basic Land — Mountain

Mountain

Premium Deck Series: Fire and Lightning

This land enters tapped.
When this land enters, target creature gets +2/+0 until end of turn.
{T}: Add {R}.

Teetering Peaks

Duel Decks: Elspeth vs. Tezzeret

As this land enters, you may reveal a Kithkin card from your hand. If you don't, this land enters tapped.
{T}: Add {W}.
Reinforce 1—{1}{W} ({1}{W}, Discard this card: Put a +1/+1 counter on target creature.)

Rustic Clachan

Archenemy

Basic Land — Plains

Plains

Shadowmoor

Land — Mountain

({T}: Add {R}.)
This land enters tapped.
{R}, {T}: Shuffle your library. Activate only if you control two or more red permanents.

Madblind Mountain

Morningtide

Sorcery

Sacrifice any number of lands. Search your library for up to that many land cards, put them onto the battlefield tapped, then shuffle.

Scapeshift

Lorwyn

Basic Land — Swamp

Swamp

Mercadian Masques

Creature — Human Spellshaper

{1}{B}{B}, {T}, Discard a card: Creatures target player controls attack this turn if able.