Boreal Druid

Giant Growth

Target creature gets +3/+3 until end of turn.

Concordant Crossroads

Arboreal Grazer

Reach
When this creature enters, you may put a land card from your hand onto the battlefield tapped.

Tendershoot Dryad

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
At the beginning of each upkeep, create a 1/1 green Saproling creature token.
Saprolings you control get +2/+2 as long as you have the city's blessing.

Forest

Sol Ring

Sakura-Tribe Scout

{T}: You may put a land card from your hand onto the battlefield.

Utopia Sprawl

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

Llanowar Elves

Birds of Paradise

Fyndhorn Elves

Shroofus Sproutsire

Trample
Whenever a Saproling you control deals combat damage to a player, create that many 1/1 green Saproling creature tokens.

Wild Growth

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