Vivid Marsh

Land
Vivid Marsh comes into play tapped with two charge counters on it.
{T}: Add {G} to your mana pool.
{T},Remove a charge counter from Vivid Marsh: Add one mana of any color to your mana pool.

-- All colors available. CipT

Archaeological Dig

Land
{T}: Add {1} to your mana pool.
{T},Sacrifice Archaeological Dig: Add one mana of any color to your mana pool.

--- Can onyl be used 1 time for colored Mana.

Forsaken City

Land
Forsaken City doesn't untap during your untap step.
At the beginning of your upkeep, you may remove a card in your hand from the game. If you do, untap Forsaken City.
{T}: Add one mana of any color to your mana pool.

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Grand Coliseum

Land
Grand Coliseum comes into play tapped.
{T}: Add {1} to your mana pool.
{T}: Add one mana of any color to your mana pool. Grand Coliseum deals 1 damage to you

---
Rainbow Vale

Land
{T}: Add one mana of any color to your mana pool. An opponent gains control of Rainbow Vale at end of turn.

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Tendo Ice Bridge

Land
Tendo Ice Bridge comes into play with a charge counter on it.
{T}: Add {1} to your mana pool.
{T},Remove a charge counter from Tendo Ice Bridge: Add one mana of any color to your mana pool.



That's all.