The Deck:

Commander:
Vorinclex, Monstrous Raider

Creatures:
1 Delighted Halfling
1 Elvish Mystic
1 Fyndhorn Elves
1 Llanowar Elves
1 Benevolent Hydra
1 Gyre Sage
1 Incubation Druid
1 Primordial Hydra
1 Scavenging Ooze
1 Arwen, Weaver of Hope
1 Champion of Lambholt
1 Eternal Witness
1 Evolution Sage
1 Kami of Whispered Hopes
1 Kodama of the West Tree
1 Managorger Hydra
1 Rishkar, Peema Renegade
1 Beast Whisperer
1 Forgotten Ancient
1 Renata, Called to the Hunt
1 Defiler of Vigor
1 Kalonian Hydra
1 Loyal Guardian
1 Vorinclex
1 Vigor
1 Ancient Bronze Dragon
1 Avenger of Zendikar
1 Craterhoof Behemoth

Instants:
1 Nature's Claim
1 Snakeskin Veil
1 Veil of Summer
1 Worldly Tutor
1 Heroic Intervention
1 Beast Within
1 Inspiring Call

Sorceries:
1 Green Sun's Zenith
1 Nature's Lore
1 Three Visits
1 Unnatural Restoration
1 Cultivate
1 Kodama's Reach
1 Triumph of the Hordes
1 Virtue of Strength

Artifacts:
1 Jeweled Lotus
1 Sol Ring
1 The Millennium Calendar
1 The Ozolith
1 Emerald Medallion
1 Lightning Greaves
1 Ozolith, the Shattered Spire
1 Sword of Truth and Justice
1 The Great Henge

Enchantments:
1 Hardened Scales
1 Sylvan Library
1 Branching Evolution
1 Court of Garenbrig
1 Tribute to the World Tree
1 Guardian Project
1 Asceticism
1 Doubling Season

Planeswalkers:
1 Garruk, Unleashed
1 Garruk, Primal
1 Nissa, Who Shakes the World
1 Vivien Reid
1 Garruk, Caller of Beasts
1 Ugin, the Spirit Dragon

Lands:
1 Boseiju, Who Endures
1 Castle Garenbrig
2 Forest
1 Gaea's Cradle
1 Karn's Bastion
1 Nykthos, Shrine to Nyx
1 Oran-Rief, the Vastwood
1 War Room
1 Yavimaya Hollow

The Gameplan:

+1/+1 counters go brrrrrrr

This deck is all about getting big creatures on the board fast and making them bigger with +1/+1 counters.

With this, we trample over our opponents. It doesn't get much more green than that.