This deck crumbled on the last day, mainly because of the sudden aggro onslaught I wasn't prepared for. with just a 50%winrate vs aggro + a few unlucky match, had to gave up on the climb on the last day.
As such i decided to update my deck a little to fight off aggro a little better:
Mc tech (I was a fool for not putting him in earlier)
Kabal Lackey (makes both secrets and medivh's valet more consistent against aggro)
Acidic Swamp ooze (tech)
Loot hoarder (better draw against aggro)
Sylvana Windrunner : Too slow against aggro, a luxury vs control, but one I can't afford right now.
Spellbender (really sad, but this is for the best, will be included back if metas slows down)
Babbling book (not good enough, kabal lackey is better at the moment).
Arcane intellect (won't come back, too much draw vs control, too slow vs aggro).
Secrets work like tech cards: you don't have to put those secrets, you don't have to put that many, or you can put more (max is 6)
Secrets are your go to slot if you have to adapt your deck to the meta. Here's what to use in what meta:
Mirror Entity : This is good in a curvestone meta and an aggro meta. If people play on curve, you probably want mirror entity to force them into something else or get free value.
Potion of Polymorph: THis is good in a curve meta and in a combo meta. Like mirror entity, use it to force an off curve play. Unlike mirror entity, you can use it to disrupt combo plays (bran kazakus, leeroy PO, auctioneer...)
Counterspell : good in any meta besides zoo. One of the few secret you should never remove.
Spellbender : Really good in a control meta. Will almost always disrupt a key removal. Can win you game by protecting archmage antonidas. Remove vs face decks.
Ice Barrier : Useful in an aggro/face meta, and marginaly in an otk charge based meta. ot too fond of that secret in general.
Vaporize : Bad. Only useful if all the decks relies on leeroy to finish the game.
Effigy: Bad. Only use in a greedy meta. As long as you can't prevent your opponent from going face, it's not good enough.
Ice Block: Mandatory in Reno Mage.
Duplicate : (wild only): Really good works as a sudo arcane intellect. Only bad in a full face meta if you don't play any taunt.
Use that knowledge to tune this deck to what you face.
Of course the usual tech cards are also available to you. (Mc tech, dirty rat, harrison, ooze, black knight, silence, 2nd rate bruiser, farseer and whatever else you can think of).
I'd recommend ooze over harrison (too slow vs aggro, gives you too many cards vs control).