I've rebuilt most of the decks that you can find in challenge set 1 but I know I'm missing a blue artifact deck (with
Lodestone Golem) and one called zoo I believe(with
Wild Nacatl.)
So far I have the following decks apart from the ones posted by Salbei:
burn
x mana (Manaflare
Heartbeat of Spring)
blue and black
Winter Orbred
Winter Orbgreen and vampires
Beating all the challenge decks is a good trial to any new deck. Maybe a mini challenge out of it?
If anybody is interested I can post the decks I rebuilt.
And maybe someone can post the ones I missed.