Boros Garrison

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {R}{W}.

Swamp

{T}: Add {C}.
{T}: Add {R} or {W}. This land deals 1 damage to you.

This land enters tapped unless you control two or fewer other lands.
{T}: Add {W} or {B}.

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

{T}: Add {B}.
{T}: Add {R}. Activate only if you control a Swamp or a Mountain.

{T}: Add {C}.
{T}: Add {B} or {R}. This land deals 1 damage to you.

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {W}{B}.

{T}: Add {C}.
{T}: Add {W} or {B}. This land deals 1 damage to you.

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

This land enters tapped unless you control two or fewer other lands.
{T}: Add {R} or {W}.

{T}: Add {B}.
{T}: Add {W}. Activate only if you control a Plains or a Swamp.

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

This land enters tapped.
When this land enters, return a land you control to its owner's hand.
{T}: Add {B}{R}.

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

{T}: Add {W}.
{T}: Add {R}. Activate only if you control a Mountain or a Plains.

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