Thornwood Falls

Thornwood Falls enters tapped.
When Thornwood Falls enters, you gain 1 life.
{T}: Add {G} or {U}.

Conifer Strider

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

This spell costs {1} less to cast if you control a creature with flying.
Draw two cards.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Other Elementals you control have trample.

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

Flying
Whenever you cast your second spell each turn, put a +1/+1 counter on Thunder Drake.

Flying
When Cloudkin Seer enters, draw a card.

Enchant creature
Enchanted creature gets +2/+2 and has flying.

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