Forest

Heedless One

Trample
Heedless One's power and toughness are each equal to the number of Elves on the battlefield.

Rolling Thunder

Rolling Thunder deals X damage divided as you choose among any number of targets.

Skyshroud Elf

Lava Burst

Lava Burst deals X damage to any target. If Lava Burst would deal damage to a creature, that damage can't be prevented or dealt instead to another permanent or player.

Wellwisher

{T}: You gain 1 life for each Elf on the battlefield.

Wirewood Lodge

{T}: Add {C}.
{G}, {T}: Untap target Elf.

Quirion Elves

As Quirion Elves enters the battlefield, choose a color.
{T}: Add {G}.
{T}: Add one mana of the chosen color.

Priest of Titania

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

Fireball

This spell costs {1} more to cast for each target beyond the first.
Fireball deals X damage divided evenly, rounded down, among any number of targets.

Brush with Death

Buyback {2}{B}{B} (You may pay an additional {2}{B}{B} as you cast this spell. If you do, put this card into your hand as it resolves.)
Target opponent loses 2 life. You gain 2 life.

Seeker of Skybreak

Well of Knowledge

{2}: Draw a card. Any player may activate this ability but only during their draw step.

Wirewood Elf

Vitalize

Elvish Guidance

Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional {G} for each Elf on the battlefield.