Climb to legends before the expansion with Secret Odd Mage.
There are many variants out there.
The deck's original creator is MisplayTV:
You can play around with secrets and +/- ones however you'd like.
Running two Mirror Entity, two Counterspell or two Explosive Runes is up to you
This deck brings ton of pressure and great finishing potential with Daring Fire-Eater, Clockwork Automaton, Leeroy Jenkins and Ragnaros the Firelord from Jan'alai, the Dragonhawk
Deck performs well against aggro-, odd-, control- and OTK decks.
Watch out for odd taunt/control warriors, mirror matchups and spell hunters.
Classes that can heal up and bulk up on armor/health are to watch out for. Play carefully and tactically against them otherwise they'll bait you to overextend and capitalize.
You need to be aggressive on board and take risks. How you play your secrets determines the skillcap of the deck.
Games are fast and quick, 5-10 minutes. You will not be exhausted playing this deck and can go on long streaks.
Share your thoughts and progression in the comments.
Take care and good luck!
Hail Ragnaros the Firelord