50 card jumpstart deck with Dionus, Elvish Archdruid as the Commander.

Ivy Lane Denizen on table play Herd Baloth = infinite +4/+4 Beasts, play Scurry Oak infinite +1/+1 Squirrels.  With Essence Warden on the table = infinite life gain.  With Maskwood Nexu on the table all creatures become Elves as well as their creature type. Can be retriggered by playing a green creature.

Use Emmaculate Magistrate ability on Champion of Lambholt to make creatures unblockable. Use on Jagged-Scar Archers to destroy large creatures with flying. Use on Joraga Warcaller to give all creatures +1/+1  for all counters on it.

If your Commander is on the field, tap creatures with tap abilities once on your turn, then once on an opponent's turn, to give them a +1/+1 counter on each of the turns. If Omanath, Locus of Mana, is on the field you do not lose any unspent mana that is produced while doing this.

Green Sun's Zenith, Perfect Defense, Sylvan Tutor, Vivien, Monster's advocate, let you search for creatures. Vivien, also lets you look at your top card, play creatures from the top of your library, and create 3/3 green beast creature tokens with either a reach, vigilance, or trample counter on them.

Elvish Champion gives all elves +1/+1 and forest walk. Fangorn Forest makes all lands forests in addition to other land types. Gaea's Cradle creates a forest for each creature you control.

Elven Chorus let's you look at the top card of your library any time. You may cast creature spells from the top of your library. "More important", creatures you control have "tap" Add one mana of any color. This lets you tap your all of your creatures once during your turn, then tapping them once on an opponent's turn. This gives them a +1/+1 counter each time they do this and creates mana that you hopefully won't lose if you have Omnath, Locus of Mana on the field.

Bristly Bill, Spine Sower doubles the number of +1/+1 counters on each creature you control, for 5 mana. You can play this repeatedly as long as you have the mana for it. (2 Forests 3 generic). If you have Elvish Archdruid, Marwyn, the Nurturer, or Priest of Titania on the field, you should have plenty of mana to do this, especially if you have played the Ivy Lane Denizon / Herd Baloth / Scurry Oak combos. If you have a creature with a tap ability: this is how it works:  1/1 Elf that you can tap and create a fores, tap it, create a forest, untap it put a +1/+1 counter on it. On each of your opponents turns, repeat this. when it is your turn again, you will have a 5/5 Elf, and five forests. Use Bill's ability, and the Elf becomes a 10/10 Elf.  All of this on one turn.

Wellwisher, will give you a life for each Elf in play. If Maskwood Nexus is in play, all creatures you control will be elves in addition to their other creatures types. You can tap Wellwisher on each of your opponent's turns to repeat the life gain and give her a +1/+1 counter each time.

Beast Whisperer lets you draw a card whenever you cast a creature spell.

There are 6 mana dorks in the deck.

Wildborn Preserver can be pumped up every time you play a non-human creature, and has reach. You can also pump it up with Immaculate Magistrate.

For one Forest, tap Elvish Piper and put a creature card from you hand into play.

Craterhoof Behemoth is usually a Wincon, and should be if you have a 100 creatures with a 100 +1/+1 counters and trample on them all attacking.