Quilled Slagwurm

Aspect of Hydra

Target creature gets +X/+X until end of turn, where X is your devotion to green. (Each {G} in the mana costs of permanents you control counts toward your devotion to green.)

Leatherback Baloth

Kalonian Tusker

Rumbling Baloth

Howl of the Night Pack

Create a 2/2 green Wolf creature token for each Forest you control.

Nature's Spiral

Return target permanent card from your graveyard to your hand.

Hunt the Weak

Put a +1/+1 counter on target creature you control. Then that creature fights target creature you don't control. (Each deals damage equal to its power to the other.)

Momentous Fall

As an additional cost to cast this spell, sacrifice a creature.
You draw cards equal to the sacrificed creature's power, then you gain life equal to its toughness.

Muraganda Petroglyphs

Gnarled Mass

Forest

Tranquil Thicket

This land enters tapped.
{T}: Add {G}.
Cycling {G} ({G}, Discard this card: Draw a card.)

Feral Incarnation

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
Create three 3/3 green Beast creature tokens.