Dragonskull Summit

Dragonskull Summit enters tapped unless you control a Swamp or a Mountain.
{T}: Add {B} or {R}.

City of Brass

Whenever City of Brass becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

{T}: Add one mana of any color in your commander's color identity.

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

{T}: Add {C}.
{T}: Add {B} or {R}. Sulfurous Springs deals 1 damage to you.

Deathcap Glade enters tapped unless you control two or more other lands.
{T}: Add {B} or {G}.

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

({T}: Add {R} or {G}.)
Cinder Glade enters tapped unless you control two or more basic lands.

Luxury Suite enters tapped unless you have two or more opponents.
{T}: Add {B} or {R}.

Vigilance
A player losing unspent mana causes that player to lose that much life.
{1}, {T}: Each player adds {B}{R}{G}.

{T}: Add {C}.
{T}: Add {B} or {G}. Llanowar Wastes deals 1 damage to you.

Savage Lands enters tapped.
{T}: Add {B}, {R}, or {G}.

Haunted Ridge enters tapped unless you control two or more other lands.
{T}: Add {B} or {R}.

({T}: Add {B} or {R}.)
Smoldering Marsh enters tapped unless you control two or more basic lands.

Undergrowth Stadium enters tapped unless you have two or more opponents.
{T}: Add {B} or {G}.

{T}: Add {C}.
{T}: Add {R} or {G}. Karplusan Forest deals 1 damage to you.

Rockfall Vale enters tapped unless you control two or more other lands.
{T}: Add {R} or {G}.

Woodland Cemetery enters tapped unless you control a Swamp or a Forest.
{T}: Add {B} or {G}.

Spire Garden enters tapped unless you have two or more opponents.
{T}: Add {R} or {G}.

Rootbound Crag enters tapped unless you control a Mountain or a Forest.
{T}: Add {R} or {G}.