I don’t see much point piloting this archetype without Guldan. Hypothetically, you could rush down opponents with the Giants before they have a chance to respond, but most games with this deck end up reaching the late game, where you really need Guldan to generate demons for that final push to end the game. Not being able to find a Guldan in these situations often translates into a loss.

Picked this deck up to ladder on Asia server. I have to say it’s really addicting. You have to work to find wins with it, so it might not be for everyone, especially newer players. Knowledge of your deck’s capabilities as well as general metagame knowledge is the key to victory. You can have some pretty crazy turns thanks to the discount from Radiant Elemental in tandem with your cheap spells and insanely efficient card draw option (Circle + Cleric, Pyromancer + Acolyte, etc).
As an added bonus, opponents tend to be pretty salty about getting slapped in the face with a 48/48 Witchwood Grizzly.
I highly recommend this deck.