Priest of Titania

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

Armageddon

City of Brass

Whenever this land becomes tapped, it deals 1 damage to you.
{T}: Add one mana of any color.

Rune of Protection: Black

{W}: The next time a black source of your choice would deal damage to you this turn, prevent that damage.
Cycling {2} ({2}, Discard this card: Draw a card.)

Disenchant

Darkwatch Elves

Protection from black
Cycling {2} ({2}, Discard this card: Draw a card.)

Plains

Elvish Lyrist

{G}, {T}, Sacrifice this creature: Destroy target enchantment.

Symbiosis

Two target creatures each get +2/+2 until end of turn.

Light of Day

Wall of Blossoms

Defender
When this creature enters, draw a card.

Humble

Until end of turn, target creature loses all abilities and has base power and toughness 0/1.

Hurricane

Hurricane deals X damage to each creature with flying and each player.

Spreading Algae

Enchant Swamp
When enchanted land becomes tapped, destroy it.
When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.

Multani's Presence

Whenever a spell you've cast is countered, draw a card.

Gaea's Cradle

{T}: Add {G} for each creature you control.

Eladamri, Lord of Leaves

Other Elf creatures have forestwalk. (They can't be blocked as long as defending player controls a Forest.)
Other Elves have shroud. (They can't be the targets of spells or abilities.)

Brushland

{T}: Add {C}.
{T}: Add {G} or {W}. This land deals 1 damage to you.

Lhurgoyf

Lhurgoyf's power is equal to the number of creature cards in all graveyards and its toughness is equal to that number plus 1.

Worship

If you control a creature, damage that would reduce your life total to less than 1 reduces it to 1 instead.

Rune of Protection: Red

{W}: The next time a red source of your choice would deal damage to you this turn, prevent that damage.
Cycling {2} ({2}, Discard this card: Draw a card.)

Might of Oaks

Target creature gets +7/+7 until end of turn.

Forest

Weatherseed Treefolk

Trample
When this creature dies, return it to its owner's hand.

Scragnoth

This spell can't be countered.
Protection from blue

Clear

Destroy target enchantment.
Cycling {2} ({2}, Discard this card: Draw a card.)

Cradle Guard

Trample
Echo {1}{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.)

Spike Feeder

This creature enters with two +1/+1 counters on it.
{2}, Remove a +1/+1 counter from this creature: Put a +1/+1 counter on target creature.
Remove a +1/+1 counter from this creature: You gain 2 life.

Repopulate

Shuffle all creature cards from target player's graveyard into that player's library.
Cycling {2} ({2}, Discard this card: Draw a card.)

Harrow

As an additional cost to cast this spell, sacrifice a land.
Search your library for up to two basic land cards, put them onto the battlefield, then shuffle.

Llanowar Elves

Overrun

Creatures you control get +3/+3 and gain trample until end of turn. (Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.)