Farseek

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

Mountain

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

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

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

Haste
As long as this card is in your graveyard and you control a Mountain, creatures you control have haste.

Search your library for a Forest card, put that card onto the battlefield, then shuffle.

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

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

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

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

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

Haste
Whenever a creature you control with haste attacks, create a tapped Treasure token.

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

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

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

{T}: Add {C}.
{X}{R}{G}, {T}: Target creature gets +X/+0 and gains trample until end of turn.

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

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

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