Beast Whisperer

Whenever you cast a creature spell, draw a card.

Essence Warden

Whenever another creature enters, you gain 1 life.

Plains

Reprieve

Return target spell to its owner's hand.
Draw a card.

Avacyn's Pilgrim

Priest of Titania

{T}: Add {G} for each Elf on the battlefield.

Trelasarra, Moon Dancer

Whenever you gain life, put a +1/+1 counter on Trelasarra, Moon Dancer and scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Elvish Harbinger

When Elvish Harbinger enters, you may search your library for an Elf card, reveal it, then shuffle and put that card on top.
{T}: Add one mana of any color.

Spirit Link

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Whenever enchanted creature deals damage, you gain that much life.

Ajani's Pridemate

Whenever you gain life, put a +1/+1 counter on this creature.

Forest

Lys Alana Huntmaster

Whenever you cast an Elf spell, you may create a 1/1 green Elf Warrior creature token.