Vitalize

Leyline of Abundance

If Leyline of Abundance is in your opening hand, you may begin the game with it on the battlefield.
Whenever you tap a creature for mana, add an additional {G}.
{6}{G}{G}: Put a +1/+1 counter on each creature you control.

Simian Spirit Guide

Exile Simian Spirit Guide from your hand: Add {R}.

Skyshroud Elf

Marwyn, the Nurturer

Whenever another Elf you control enters, put a +1/+1 counter on Marwyn, the Nurturer.
{T}: Add an amount of {G} equal to Marwyn's power.

Elvish Mystic

Birds of Paradise

Manamorphose

Add two mana in any combination of colors.
Draw a card.

Joraga Warcaller

Multikicker {1}{G} (You may pay an additional {1}{G} any number of times as you cast this spell.)
Joraga Warcaller enters with a +1/+1 counter on it for each time it was kicked.
Other Elf creatures you control get +1/+1 for each +1/+1 counter on Joraga Warcaller.

Fyndhorn Elves

Beast Whisperer

Whenever you cast a creature spell, draw a card.

Priest of Titania

{T}: Add {G} for each Elf on the battlefield.

Recycle

Skip your draw step.
Whenever you play a card, draw a card.
Your maximum hand size is two.

Llanowar Elves

Elvish Spirit Guide

Exile Elvish Spirit Guide from your hand: Add {G}.

Lotus Petal

{T}, Sacrifice Lotus Petal: Add one mana of any color.

Chancellor of the Tangle

You may reveal this card from your opening hand. If you do, at the beginning of your first main phase of the game, add {G}.
Vigilance, reach

Elvish Archdruid

Other Elf creatures you control get +1/+1.
{T}: Add {G} for each Elf you control.