Marwyn, the Nurturer

Whenever another Elf you control enters, put a +1/+1 counter on Marwyn, the Nurturer.
{T}: Add an amount of {G} equal to Marwyn's power.

Wirewood Pride

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

Llanowar Tribe

Llanowar Elves

Prevent all combat damage that would be dealt this turn.

Elvish Warmaster

Whenever one or more other Elves you control enter, create a 1/1 green Elf Warrior creature token. This ability triggers only once each turn.
{5}{G}{G}: Elves you control get +2/+2 and gain deathtouch until end of turn.

Priest of Titania

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

Wellwisher

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

Elvish Mystic

Copperhorn Scout

Whenever Copperhorn Scout attacks, untap each other creature you control.

Blossoming Defense

Target creature you control gets +2/+2 and gains hexproof until end of turn.

Fyndhorn Elves

Elvish Archdruid

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