Dragonskull Summit

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

Isolated Chapel

Isolated Chapel enters tapped unless you control a Plains or a Swamp.
{T}: Add {W} or {B}.

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

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

Clifftop Retreat enters tapped unless you control a Mountain or a Plains.
{T}: Add {R} or {W}.

Bojuka Bog enters tapped.
When Bojuka Bog enters, exile target player's graveyard.
{T}: Add {B}.

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

Nomad Outpost enters tapped.
{T}: Add {R}, {W}, or {B}.

Vault of Champions enters tapped unless you have two or more opponents.
{T}: Add {W} or {B}.

{T}: Add {C}.
{4}, {T}: Target creature can't be blocked this turn.

({T}: Add {R} or {W}.)
As Sacred Foundry enters, you may pay 2 life. If you don't, it enters tapped.

({T}: Add {R}, {W}, or {B}.)
Savai Triome enters tapped.
Cycling {3} ({3}, Discard this card: Draw a card.)

({T}: Add {B} or {R}.)
As Blood Crypt enters, you may pay 2 life. If you don't, it enters tapped.

({T}: Add {W} or {B}.)
As Godless Shrine enters, you may pay 2 life. If you don't, it enters tapped.

Spectator Seating enters tapped unless you have two or more opponents.
{T}: Add {R} or {W}.