My list is constantly evolving. I was originally drawn to control mage after seeing Otters super control version in action:
http://www.hearthpwn.com/decks/58909-otter-pops (Pretty interesting VoD of him climbing legend you can find in the link) I liked the idea of playing a very precise, long game deck, so I dusted a heap of my collection and whipped together mage. I didn't like the straight control with only the Alex +Pyro kill for various reasons but mostly because I thought it was easier for opponents to play around, playing smart and saving his life gain made it hard to win. It was also nearly 100% impossible to beat control warrior with only the alex combo kill. My matchup with warrior now that I've added more threats isn't great but it's at least possible to sneak out a win.
I have scoured the net for various lists(even finding a dated list that had all the cards pre-nerf, OMG was mage op back before I was playing). The main thing I couldn't find was a control oriented mage, that had mana wyrms. Which is essentially what I am running now. I also have added some other threats: one Water Elemental, one Molten Giant, one Kirin Tor Mage(This guy is pretty efficient I don't get why he's completely unplayed). I don't own Archmage Antonidas but I am curious to eventually try a build that incorporates him. I played a lot with two Doomsayers, but they were cut as I added more threats, and recently started trying out with one Doomsayer. I like playing one-offs if you can't tell, it gives more options, a lot of cards are worse when drawn in pairs, your opponents have a less clear idea of what you are holding at the end of a game and personally I just find it more fun. The deck can throw opponents off because they don't really know what they are facing, then think they are slowing the onslaught rush of an agro mage only to learn they are setting themselves up for the lategame Alex, burn, Pyro.
I love the matchup vs. Miracle still, solid matchup versus Handlock, many of the recent tweaks like adding the poly and adding back a doomsayer have been with druid in mind which is the tougher matchup and a class that seems to be gaining momentum in the meta(though it seems like fewer druids are running the cards that are the scariest to me like Healing Touch and Ancient of War). It can be a tricky deck to play because you really have to know what to expect from your opponents and what they are capable of doing and some plays that you would make in one matchup you wouldn't make in another. I'm no expert on this game yet, but I am getting a little better every time I play, currently one star away from Rank 2.
Anyway, heres my list right now
Obi's Kitchen Sink Control Mage:
1x Ice Lance
1x Mirror Entity
2x Mana Wyrm
2x Frostbolt
1x Bloodmage Thalnos
1x Doomsayer
2x Arcane Intellect
1x Frost Nova
1x Ice Barrier
2x Ice Block
1x Vaporize
1x Acolyte of Pain
1x Kirin Tor Mage
2x Fireball
1x Polymorph
1x Water Elemental
2x Azure Drake
2x Blizzard
2x Flamestrike
1x Alexstrasza
1x Pyroblast
1x Molten Giant
Big issue with arena simulation.
