Elvish Guidance

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

Wirewood Elf

Heedless One

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

Wellwisher

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

Forest

Llanowar Elves

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.

Seeker of Skybreak

Priest of Titania

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

Vitalize

Quirion Elves

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

Skyshroud Elf

Rolling Thunder

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

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.

Wirewood Lodge

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

Blaze

Well of Knowledge

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

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.