Priest of Titania

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

Manamorphose

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

Elvish Visionary

When Elvish Visionary enters, draw a card.

Forest

Llanowar Elves

Wild Growth

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G}.

Elven Farsight

Scry 3, then you may reveal the top card of your library. If it's a creature card, draw a card.

Taunting Elf

All creatures able to block Taunting Elf do so.

Arbor Elf

Utopia Sprawl

Enchant Forest
As Utopia Sprawl enters, choose a color.
Whenever enchanted Forest is tapped for mana, its controller adds an additional one mana of the chosen color.

Lys Alana Huntmaster

Whenever you cast an Elf spell, you may create a 1/1 green Elf Warrior creature token.

Fractal Summoning

Create a 0/0 green and blue Fractal creature token. Put X +1/+1 counters on it.

Nyxborn Hydra

Bestow {X}{G}{G} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached.)
Reach, trample
Nyxborn Hydra enters with X +1/+1 counters on it.
Enchanted creature gets +1/+1 for each +1/+1 counter on Nyxborn Hydra and has reach and trample.

Llanowar Visionary

When Llanowar Visionary enters, draw a card.
{T}: Add {G}.

Mwonvuli Acid-Moss

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