Mulligans
General Mulligans
You want to cheat out these early minions to not only build up your rush minion, but also to maximize draw from Roaring Applause.Keeping Magatha, Bane of Music in hand is a good idea especially if you did not get any other draw in your mulligan.
Keeping Steam Guardian in hand is a 2/3 chance to draw Roaring Applause, so keep that in mind.
The deck idea is simple. Play low cost minions early, building board dominance and pressure, draw incredible amounts of cards and refill your board until you got a Warsong Commander lethal.