Rogue's Passage

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

Command Tower

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

{T}: Add one mana of any color that a land an opponent controls could produce.

({T}: Add {W} or {U}.)
Prairie Stream enters tapped unless you control two or more basic lands.

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

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

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

Thriving Heath enters tapped. As it enters, choose a color other than white.
{T}: Add {W} or one mana of the chosen color.

Thriving Isle enters tapped. As it enters, choose a color other than blue.
{T}: Add {U} or one mana of the chosen color.

Thriving Moor enters tapped. As it enters, choose a color other than black.
{T}: Add {B} or one mana of the chosen color.

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

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

({T}: Add {U} or {B}.)
Sunken Hollow enters tapped unless you control two or more basic lands.