You have waaaayyy to many 1 mana drops IMO.
Get rid of Cog and get rid of Unstable Portal. Add in two secrets and two mad scientists.
Secrets are one of the top reasons to play Mage, and you aren't even running any.
Personally I'd ditch Wyrm as well and run something else.
PS: I'm not top tier, but let me post my deck in a sec.
What?
Cogmaster is insane value and becomes #1 to target in mech mage.
Some mech mages can benefit from Wyrm since Mages run so many spells. If anything, consider adding the tinkertown technician.