Pendelhaven

{T}: Add {G}.
{T}: Target 1/1 creature gets +1/+2 until end of turn.

Wall of Blossoms

Defender
When Wall of Blossoms enters, draw a card.

Deranged Hermit

Echo {3}{G}{G} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When Deranged Hermit enters, create four 1/1 green Squirrel creature tokens.
Squirrel creatures get +1/+1.

Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Yavimaya Coast

{T}: Add {C}.
{T}: Add {G} or {U}. Yavimaya Coast deals 1 damage to you.

Squirrel Nest

Enchant land
Enchanted land has "{T}: Create a 1/1 green Squirrel creature token."

Forest

Birds of Paradise

Mana Leak

Counter target spell unless its controller pays {3}.

Opposition

Tap an untapped creature you control: Tap target artifact, creature, or land.

Counterspell

Island

Snap

Return target creature to its owner's hand. Untap up to two lands.