This deck is designed to draw a ton of cards, stall, and optimally combo out on turn 8. Technically the fastest win is turn 6 but that's only on a perfect draw. Yes this is a highlander list that runs a duplicate but that is because you really need to draw into secret passage to win and you have enough draw that it usually isn't an issue to have 1 duplicate card. Reno and Zephyrs are in to give Rogue some much needed survivability and board clears that are normally impossible for Rogue to pull off.
Setup: Any turn before the combo turn use Anka to reduce Mechathun to 1 mana.
Combo: Myra's Unstable Evolution + Mechathun + Broom + Secret Passage then trade the Broom in and then Mechathun for a turn 8 Lethal.
Mulligan: If you see Secret Passage in your Mulligan ALWAYS keep it, because it will enable your Zeph and Reno as well as being a good source of draw if you really need it, since we run 2 you could waste a secret passage but it's not recommended. Another amazing card to keep is Sphere of Sapience, it can help you sift through some of the situational cards like Evasion and Coerce and instead draw combo pieces or more draw. Another amazing card to keep is Polket, Polket is perfect in this deck because it allows you to draw Mechathun, Anka, Myra's and Witchwood Piper which can draw Broom. BUT NEVER CAST POLKET IF YOU HAVEN'T DRAWN SECRET PASSAGE YET, if you do you'll have to get through half your deck before you can win.
The perfect draw: Technically if you draw Mechathun, Preparation, Myra's, Broom, Anka and Secret passage by turn 5 you could win the game turn 6. All you have to do is Anka turn 5 which reduces the cost of Mechathun to 1. Then on turn 6 cast Preparation + Myra's then cast Mechathun + Broom, cast Secret Passage and then trade Broom then Mechathun, that's about the fastest this deck can go without coin.