Hearthpwn

Proof the 75%

The idea is interesting, but isn't Keleseth after 4 just weak? If you don't draw Keleseth before that, then you're basically doing 2 weak turns in a row: Piper has poor stats for a 4-drop and then you play Keleseth on 5 with shadowstep? In my experience shadowstep becomes way too valuable for bounce effects during late-game to spend it on Keleseth on turn 5-6.

I don't want to sound rude, but do yourself a favour and remove Felsoul Inquisitor completely from the deck, it's just a terrible card. Put one Spellbreaker instead.

Also, not running Hench-Clan Thug in rogue is a crime. This is even more important when you run Prince Keleseth, as most of the time you will hero power on turn 2, which is a perfect setup for thug. Most of the time they're better than Vicious Fledgling as they're more difficult to kill, so I'd run them in their place.

Hallucination is not that good in tempo rogue, Blink Fox is the same but with a 3/3 body, much better imo, and you'd be better opening up that space for a second Cobalt Scalebane and Fungalmancer.

TL;DR: -2x Vicious Fledgling, +2x Hench-Clan Thug. -2x Felsoul Inquisitor, +1x Spellbreaker +1x Leeroy Jenkins. -2x Hallucination, +1x Cobalt Scalebane +1x Fungalmancer

Edit 1: one copy of Fan of Knives can be a good idea too, since not having one drops means you'll have trouble contesting odd paladin. Perhaps instead of Spellbreaker, it depends on what decks you face most.

Edit 2: as Fravar pointed out, I had put -2x Vicious Fledgling twice in the TL;DR, I meant Hallucination, it's corrected now (also wrote the reason why).

I have tried the deck with your change, turnout it is really good. Hench-Clan Thug is better than Vicious Fledgling, as I have an instant 4/4 instead of 3/3 on my board, which is harder for the opponent to clear.

You have -2x  Vicious Fledgling twice...  Which is better,  Cobalt Scalebane, Fungalmancer, or Leeroy Jenkins?

You're right, I meant Hallucination. It's like blink fox but without the 3/3 body, not really suitable in a tempo deck.

Sadly my computer went bust. Sorry for the late answer. You are absolutely right. I'll do the changes and check boomsday again for this deck.

Any replacement for Vilespine Slayer ? Assassinate Maybe?

Assassinate is a huge tempo loss. If you can't craft Vilespine Slayer, I'd suggest just forgetting about having the "destroy a minion" effect in the deck altogether. If I were you, I'd apply the changes I suggested in my comment above and, in your case, maybe add a second Spellbreaker and something else or two Fal'dorei Strider

Spellbreaker won't kill a minion, but it will let you go through a taunt or prevent a powerful effect from being active (which is what vilespine is used for in many cases)

Sorry but I don't think this is a budget deck you can get away without these epics. Vilespine Slayer is key because you can use Zola the Gorgon and Shadowstep on it. You can't do that with assassinate. 

Very interesting deck! I've changed one Felsoul Inquisitor for Sonya and it's working pretty well! In some games I play Keleseth about 5~6 times

No Henchclan Thug?

why felsoul inquisitor?

other candidates like sonya, or a silvermoon guardian?

Reason is because turn 5 felsoul inquisitor + cold blood = 6 mana 5/6 taunt with lifesteal :D

I hope that's not the reason because that's just terrible. For that combo to work, you need to have both cards at the same time, which is unlikely. Having cold blood on its own is pretty good, but inquisitor on its own is as bad as it gets. On top of that, a 6 mana 5/6 taunt with lifesteal is not that good. And to make things worse, there are so many cards a tempo rogue list wants to be running, you can't just sacrifice two slots for felsoul inquisitor.

What card to replace Zola?

Thank you

its a 2-mana cost card, this is a Kelesith Deck....

So the other brewmaster then. But, on 4 mana it's not nearly as powerful.

well.. at the start it was nice but after a few hours it turned into a lose streak for me. I wonder whats your result