Alpha Status

Enchant creature
Enchanted creature gets +2/+2 for each other creature on the battlefield that shares a creature type with it.

Wirewood Channeler

{T}: Add X mana of any one color, where X is the number of Elves on the battlefield.

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

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

Other Elf creatures you control get +1/+1.
{T}: Add {G} for each Elf you control.

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

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

Creatures of the creature type of your choice get +X/+X until end of turn.

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

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