Elvish Soultiller

When this creature dies, choose a creature type. Shuffle all creature cards of that type from your graveyard into your library.

Giant Growth

Target creature gets +3/+3 until end of turn.

Each player's life total becomes the number of creatures they control.

Forests you control are 1/1 green Elf creatures that are still lands.
{1}{G}, Sacrifice an Elf: Target creature gets +3/+3 until end of turn.

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

Target creature gets +X/+X until end of turn, where X is the number of Elves on the battlefield.

Whenever another Elf enters, put a +1/+1 counter on this creature.

All creatures able to block this creature do so.

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

{T}: Target creature gets +X/+X until end of turn, where X is the number of Elves on the battlefield.

When this creature dies, you may search your library for an Elf card, reveal that card, put it into your hand, then shuffle.

This land enters tapped.
{T}: Add {G}.
Cycling {G} ({G}, Discard this card: Draw a card.)

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

As this enchantment enters, choose a creature type.
Creatures of the chosen type have shroud. (They can't be the targets of spells or abilities.)

Cycling {2}{G}{G} ({2}{G}{G}, Discard this card: Draw a card.)
When you cycle this card, Elf creatures get +2/+2 until end of turn.