I'll keep my eyes out for the messenger in trades, it's probably good for card draw. Coat of Arms is absolutely a better choice, but it also costs more than 10% of this deck. Any cards in my sideboard you'd consider including?

Heritage Druid for fancy combos
Voice of the Woods for very fancy things.
Wild Pair you have more than enough similar creatures to justify this.
Painful Quandary shut down opponents FAST.
Waste Not 100% must-have.
Cry of Contrition either a one mana discard two or a fascinatingly political card; either way a fun one.
Geth, Lord of the Vault sure, he's not an elf, but he scales well with discard/board wipes

A lot of good suggestions, and Voice of the Woods and Cry of Contrition is actually cards I haven't seen before. I won't be acquiring new cards for this in at least a few months, but I'm still curious about what you'd remove if you had to.
Thanks for the comment, appreciate it :)

I love your elf deck. I can just imagine some hilarious situations with this deck. . . Example:

(Turn ten and the opponent is tapped out on everything)

Me: I will attack you for 16 with my 8 Elves.

Opponent: (Laughs) I will take it.

Me: (tap for 9 mana) Vitalizing Wind, you are now taking. . . 112 for lethal. Response?

Opponent: (Stares at the Vitalizing Wind) Well. . . I didn't see that one coming!

Thank you :) Plays like that might happen earlier too with mana-tapping elves and token-production.

Some elves I might acquire: Joiner Adept, Gaea's Herald, Tajuru Preserver, Glissa Sunseeker, Yeva, Nature's Herald. Don't know if any of them are worth it, though.

You know who's an elf? Jarad, Golgari Lich Lord. He's a hilarious follow up to Immaculate Magistrate.

I have one, but it's currently a wincon in my Sidisi-deck. I might swap it in sometimes, and the same with Skullclamp that is currently in my Roon-deck ([75%] Blink blink, nudge nudge).

A friend came over a couple of days ago and traded me some elves. I'd love some input on whether I should include some of them, and what I should cut. The four first is my favorites.
Elvish Visionary - More card draw would be good
Wirewood Herald - Digs for my wincons or stops opponents from attacking
Taunting Elf - Makes all other elves unblockable, or can sweep an opponents board
Elvish Pioneer - Ok ramp
Ivy Lane Denizen
Llanowar Elite
Quirion Explorer
Patron of the Wild
Wirewood Elf
Symbiotic Elf
Elvish Pathcutter
Fierce Empath

I think you can swap Treetop Rangers and Silhana Ledgewalker for Elvish Visionary and Wirewood Herald. A Soul of the Harvest definitely wouldn't go astray here either.

As for the other elves, they don't really add much to the deck.

Quest for Renewal is a lot of fun in decks with lots of tap effects. Crazy with Wellwisher. I also wonder about getting your creatures back from the graveyard - maybe something like Deadbridge Chant or Palace Siege or Soul of Innistrad. Or Llanowar Dead for more mana. 'Cuz... zombie elves!!!

Have you considered Mindslicer for mass discard, and Library of Leng to control the occasional discard of your own cards?

Eternal Witness for some recursion and Champion of Stray Souls to sac those easy made tokens to get back all the other important creatures.

Skullclamp to quickly refill your hand using your commander's 1/1's. And with the amount of tokens you can make, Symbiotic Deployment could be worthwhile for heavy card draw.

libraryjoy: Good catch with Quest for Renewal, I hadn't considered that. It's also great with Nullmage Shepherd, Skyshroud Poacher and Yisan, the Wanderer Bard if I choose to include him. It also it gives me more mana to cast removal on other players' turns.

Raging_Squiggle: Mindslicer could be really good, but I'm not currently buying new cards. Lack of reanimation is rarely a problem. Any recommendations from the cards in my description?

Quest for Renewal would be really good like other people have said but Taunting Elf can be a auto win card if you have your bored set up.

Jason is right Shaman of the Pack would be stron as wel

yes i know you said your not not buying cards but if you do later on you should look at Joraga Warcaller, Immaculate Magistrate and Wirewood Lodge

Small update to finish the deck:
Out: Null Profusion, Recycle
In: Shaman of the Pack, Lys Alana Huntmaster, Erebos, God of the Dead, Quest for Renewal.

Looking for a Yisan, the Wanderer Bard in trades.

This deck is now retired. For further explanation, please see the Updates-section.