40 Shreds and then leave

Of course I had 4x of the 3/1 deathstrike elves to fall back on, as well as 4x elvish warriors for speed and Prefects for mass elf counters.

The real nutty combination was with the elf card that gives any elf 1 +1/+1 token when you tap it, and Seedborn Muse (untap all your cards during any opponent's untap step). Thus allowing me to pump any given card (including my now problack trampling Colossus) by ten or fifteen +1/+1 tokens a turn. And remember all those one-drops? 

Still own that one. Haven't played a magic the gathering game in half a year. I can't remember half the names, just what they do. I don't think I ever lost a one-on-one game with that one.

My wife has a very similar deck, I think it has a lot of the same cards yours has, but instead of using the Chameleon Colossus she uses Door of Destiny, which gives each elf +1/+1 for each elf cast after the door of destiny. So once that is down, her creatures continue to get bigger and bigger.

Myself I play a more old-school elf deck, still uses Llanowar Elves but I use Priest of Titania (t: add G to your mana pool for each elf in play) and Quirion Ranger (return a forest you control to its owners hand: untap target creature, only once per turn) to generate absurd amounts of mana and then do stupid things with it, like giving all my creature +15/+15 and trample with Kamahl, Fist of Krosa (2GGG: Creatures you control get +3 / +3 and trample)

Other than a few casual games against my wife here and there, I haven't really played the game in about 3 years now though.