Overgrown Tomb

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

Rakdos Guildgate

This land enters tapped.
{T}: Add {B} or {R}.

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

This land enters tapped.
{T}: Add {G} or {W}.

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

({T}: Add {G} 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, sacrifice it unless you pay {1}.
{T}: Add one mana of any color.