Immaculate Magistrate

{T}: Put a +1/+1 counter on target creature for each Elf you control.

Reclamation Sage

When Reclamation Sage enters, you may destroy target artifact or enchantment.

Fyndhorn Elves

Soul of the Harvest

Trample
Whenever another nontoken creature you control enters, you may draw a card.

Nylea, Keen-Eyed

Indestructible
As long as your devotion to green is less than five, Nylea isn't a creature.
Creature spells you cast cost {1} less to cast.
{2}{G}: Reveal the top card of your library. If it's a creature card, put it into your hand. Otherwise, you may put it into your graveyard.

Beast Whisperer

Whenever you cast a creature spell, draw a card.

Freyalise, Llanowar's Fury

+2: Create a 1/1 green Elf Druid creature token with "{T}: Add {G}."
−2: Destroy target artifact or enchantment.
−6: Draw a card for each green creature you control.
Freyalise, Llanowar's Fury can be your commander.

Overwhelming Stampede

Until end of turn, creatures you control gain trample and get +X/+X, where X is the greatest power among creatures you control.

Voice of Many

When Voice of Many enters, draw a card for each opponent who controls fewer creatures than you.

Return to Nature

Choose one —
• Destroy target artifact.
• Destroy target enchantment.
• Exile target card from a graveyard.

Numa, Joraga Chieftain

At the beginning of combat on your turn, you may pay {X}{X}. When you do, distribute X +1/+1 counters among any number of target Elves.
Partner (You can have two commanders if both have partner.)

Llanowar Elves

Elvish Visionary

When Elvish Visionary enters, draw a card.

Yeva, Nature's Herald

Flash (You may cast this spell any time you could cast an instant.)
You may cast green creature spells as though they had flash.

Ivy Lane Denizen

Whenever another green creature you control enters, put a +1/+1 counter on target creature.