Tempo Mage is still a decent deck and fun to climb the ladder with. No new cards from the most recent expansion, but with a more mid-heavy list like this one you can advance up the ranks in the current META.
There are loads of Tempo Mage decks on ladder right now, I think this is the best Tempo Mage Season 32, Nov 2016, but there are a few cards you can switch out if you want to experiment.
If you’re not feeling lucky then swap Barnes for a Water Elemental.
Mulligan for your Mana Wyrms and cheap removal spells. Cycle as efficiently as possible to dig through your deck and build up those big Flamewaker turns, that’s where the fun is. 🙂