For those rogue players who want a fun alternative to Galakrond Secret Rogue.

I've gotten a 78% winrate with this list, I've been playing Stealth Rogue since day 1 of the expansion and one of the worst things you can experience as this deck is drawing a worgen infiltrator on turn 8 when you really need to gas up. The Skydiving Instructor acts as a deck thinning tool to pull out the stealth 1 costs in this deck so you don't draw them late game, for even more consistency you could even drop Maiev Shadowsong or Burrowing Scorpid for a second copy of the instructor (although I advise against this choice, as you're likely to have drawn/summoned all one costs by the time you get the second one). 

For the Mulligan, try to hit your 1, 2, and 3 cost cards. The best curve is stealth 1 cost minion into  Praise Galakrond! (Don't attack if you have Sage!) into a Greyheart Sage or Seal Fate.

During the game, make sure you keep a keen eye for opportunities to keep your minions stealthed. Against demon hunter or mage for example a minion with stealth and 1 health is better off left stealthed as a trading tool, secret sweeper, or a card draw engine with Greyheart Sage. 

BUDGET REPLACEMENT OPTIONS (replacements ordered by recommendation)
Akama: Skyvateer, Burrowing Scorpid, Hench-Clan Sneak
Edwin VanCleef: Skyvateer, Burrowing Scorpid, Hench-Clan Sneak
Maiev Shadowsong: Sap, Ashtongue Slayer
Flik Skyshiv: Sap, Ashtongue Slayer, Burrowing Scorpid
Heistbaron Togwaggle: Dirty Tricks, Skyvateer