Hearthpwn

Interesting Reno Mage version for Wild format. It wins almost every single control matchup, because of cards like Echo of Medivh,  Duplicate, Kazakus,  N'Zoth, the Corruptor, Manic Soulcaster and Deathlord. Also it has good anti-aggro tools, including early game removals and healing.

Gameplan

Echo and Duplicate are key cards in most games. Mad scientist can help you make really strong plays, for example: turn 2 Mad Scientist into Duplicate, turn 3 removal, turn 4 Kazakus. Although, it is important to remember that against Aggro you do not need that much value: highest priority is always to survive by healing or cleaning the board.

When facing Control you should go for maximum value gameplan. Try to make a crazy Echo of Medivh combo using Emperor Thaurissan. Best cards to duplicate include: 1) Kazakus, 2) Deathlord, 3)Sylvanas Windrunner 4) Sludge Belcher. Cabal Courier and Brann Bronzebeard are good choices as well. Duplicating Reno Jackson or Antique Healbot is good only if you are under significant pressure and have to survive until a board cleaner arrives. In such matchups try to draw as little as possible. Remember, that 2 draws from Azure Drake and Bloodmage Thalnos are usually compensated by 1 Deathlord deathrattle and 1 Manic Soulcaster battlecry. Always check how many cards did your opponent draw before casting Arcane Intellect. Making more Deathlords is very important in fatigue race.

Also, duplication as well as Kazakus ressurect potions buff your N'Zoth, the Corruptor (in a value matchup try not to play Doomsayer unless it gives you a high chance to remove annoying board). Kazakus usage is similar to most Reno Mage decks.

Mulligan

Aggro: Arcane Blast, Mad Scientist, Deathlord, Frostbolt, Volcanic Potion, Bloodmage Thalnos,Doomsayer, Kazakus, Reno Jackson

Midrange: Arcane Blast, Mad Scientist, Deathlord, Frostbolt, Volcanic Potion, Bloodmage Thalnos,Doomsayer, Kazakus, Reno Jackson, Piloted Shredder, Sludge Belcher

Control: Mad Scientist, Deathlord, Frostbolt,  Kazakus, Emperor Thaurissan, Piloted Shredder, Sludge Belcher, Brann Bronzebeard

Card choice

Some of the cards I tried include Mistress of Mixtures, Acidic Swamp Ooze, Mind Control Tech and Barnes. Two first cards shine against aggressive decks, but usually are bad against control (exception - Gorehowl of the Control Warrior). It seems to me that this deck already has enough anti-aggro tools, especially with the addition of Deathlord, Antique Healbot and Sludge Belcher. If you face a lot of such decks you could try playing them instead of Piloted Shredder. Mind Control Tech is a good card that can give you a significant tempo swing, however, I can't find a place for it in this deck. Barnes synergizes with Echo, Duplicate and deathrattle minions, but usually it is a bad turn 4 play because it will rarely give you a deathrattle. That's why it was replaced for the Piloted Shredder.

Forgotten Torch is a good card, however, often you do not need to add an extra 6 damage spell to your deck, especially against Aggro. Flamecannon works a lot better.

Cairne Bloodhoof seems too slow for this deck. With Duplicate and  Echo of Medivh there always will be enough deathrattles for N'Zoth, the Corruptor.

Cabalist's Tome and Ethereal Conjurer are strong value cards, although it seems that this deck already has enough value. 

Water Elemental gets outclassed by Piloted Shredder because of its stickiness, that is really useful for this deck.

Overall, this deck is very fun to play. The feeling of satisfaction when you manage to pull out an insane value turn or get a White Eyes from the Firelands Portal is too good :)