Leafkin Druid

{T}: Add {G}. If you control four or more creatures, add {G}{G} instead.

Rampaging Rendhorn

Riot (This creature enters with your choice of a +1/+1 counter or haste.)

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

Enchant land
When Abundant Growth enters, draw a card.
Enchanted land has "{T}: Add one mana of any color."

Trample
Cycling {2} ({2}, Discard this card: Draw a card.)

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

Target creature gains trample until end of turn.
Draw a card.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

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

Target creature gets +3/+3 until end of turn. It gets an additional +2/+2 until end of turn for each card named Growth Cycle in your graveyard.

Target creature gets +4/+4 until end of turn.

Target creature you control deals damage equal to its power to target creature you don't control.