Rejuvenating Springs

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

Hinterland Harbor

This land enters tapped unless you control a Forest or an Island.
{T}: Add {G} or {U}.

{T}: Add {C}.
{G}{U}, {T}: You may cast spells this turn as though they had flash.

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

{T}: Add {C}.
{G/U}, {T}: Add {G}{G}, {G}{U}, or {U}{U}.

{T}: Add {C}.
{T}: Add {G} or {U}. This artifact 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 {G}{U}.

{T}: Add {C}.
{T}: Add {G} or {U}. This land deals 1 damage to you.

As this land enters, you may reveal a Forest or Island card from your hand. If you don't, this land enters tapped.
{T}: Add {G} or {U}.

{T}: Add {U}.
{T}: Add {G}. Activate only if you control a Forest or an Island.

{T}, Pay 1 life: Add {G} or {U}.
{1}, {T}, Sacrifice this land: Draw a card.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Forest or Island card, put it onto the battlefield, then shuffle.