An-Havva Inn

You gain X plus 1 life, where X is the number of green creatures on the battlefield.

Forest

{1}, {T}, Sacrifice Barbed Sextant: Add one mana of any color. Draw a card at the beginning of the next turn's upkeep.

{2}{G}: Create a 1/1 green Saproling creature token.

{T}, Sacrifice Lotus Petal: Add one mana of any color.

Whenever another creature you control with power 2 or less enters, you may pay {1}. If you do, draw a card.

Enchant creature
Enchanted creature gets +1/+1 and has protection from creatures.

If one or more -1/-1 counters would be put on a creature you control, that many -1/-1 counters minus one are put on it instead.

{T}: Add {C}.
{3}{W}, {T}, Sacrifice Blighted Steppe: You gain 2 life for each creature you control.

Prevent the next 1 damage that would be dealt to any target this turn.
Draw a card at the beginning of the next turn's upkeep.

{T}: Add {G}.
Put a -1/-1 counter on Devoted Druid: Untap Devoted Druid.

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {G} or {W}.

Creatures you control have haste. (They can attack and {T} as soon as they come under your control.)

Enchant creature
Enchanted creature gets +2/+2 and has trample.
Whenever enchanted creature deals damage, you gain that much life.

Sunpetal Grove enters tapped unless you control a Forest or a Plains.
{T}: Add {G} or {W}.

Crusader of Odric's power and toughness are each equal to the number of creatures you control.

When Regal Force enters, draw a card for each green creature you control.

Crumbling Vestige enters tapped.
When Crumbling Vestige enters, add one mana of any color.
{T}: Add {C}. ({C} represents colorless mana.)