Essence Warden

Whenever another creature enters, you gain 1 life.

Marwyn, the Nurturer

Whenever another Elf you control enters, put a +1/+1 counter on Marwyn, the Nurturer.
{T}: Add an amount of {G} equal to Marwyn's power.

{G/W}, {T}, Sacrifice Elvish Hexhunter: Destroy target enchantment.

Target creature becomes green and gets +1/+0 until end of turn.
Draw a card.

Vigilance (Attacking doesn't cause this creature to tap.)

Target creature gets +1/+2 and gains reach until end of turn. Untap it. (A creature with reach can block creatures with flying.)

{G}, {T}, Sacrifice Elvish Scrapper: Destroy target artifact.

Until end of turn, up to two target creatures you control each gain "Whenever this creature deals combat damage to a player, draw a card."

Whenever Elvish Berserker becomes blocked, it gets +1/+1 until end of turn for each creature blocking it.

Steel Leaf Champion can't be blocked by creatures with power 2 or less.

When Elvish Pioneer enters, you may put a basic land card from your hand onto the battlefield tapped.

Target creature gets +5/+5 until end of turn.

Other Elf creatures you control get +1/+1.
{T}: Add {G} for each Elf you control.

Other Elves you control get +1/+1.
{T}: Add {G}{G}{G}.

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

Other Elves you control get +1/+1.
{4}{G}{G}, {T}: Search your library for a card named Elvish Clancaller, put it onto the battlefield, then shuffle.

Reach
Whenever Snarespinner blocks a creature with flying, Snarespinner gets +2/+0 until end of turn.