The List

Quirion Elves

As Quirion Elves enters, choose a color.
{T}: Add {G}.
{T}: Add one mana of the chosen color.

Duel Decks: Phyrexia vs. the Coalition

As Quirion Elves enters the battlefield, choose a color.
{T}: Add {G} to your mana pool.
{T}: Add one mana of the chosen color to your mana pool.

Invasion

As Quirion Elves comes into play, choose a color.
oc
T: Add o
G to your mana pool.
oc
T: Add one mana of the chosen color to your mana pool.

Beatdown Box Set

Mirage

When you play Quirion Elves, choose a color.
oc
T: Add one mana of the chosen color to your mana pool. Play this ability as a mana source.
oc
T: Add o
G to your mana pool. Play this ability as a mana source.