I made this deck for fun and to get that "play 30 Mage cards" quest done. But, I liked how it turned out.

Main strategy is stall with Mirror Image, Doomsayer, and Frost Nova. Archmage Arugal and Messenger Raven helps create minion generating. Arcane Dynamo helps you get some AoE into your hand or if Luna's Pocket Galaxy isn't showing up fast enough. Luna's Pocket Galaxy is the ultimate value making with cheap Safeguard, Astromancer and big boy Kalecgos.

Other notable spells Mirror Entity is good to catch your opponent's big boys and Splitting Image is a great stall for your taunts or other big minions your opponent attempts to trade into. Power of Creation is just a great late game spell that works well with Khadgar as he should work well with a bunch of cards in this deck. Flamestrike is good to help out with cleaning up your opponent's board. Finally [Hearthstone Card (Conjurer's Call) Not Found] is not only great at making more big boys, but also wreaking your opponent's big minions. Taunt in the way? CC it. Big VanCleef or Hopper? CC it.

Mulligan: Hold onto[Hearthstone Card (Conjurer's Call) Not Found] and any low cost minion or Frost Nova.

Have fun!!

Deck review from my friend Kiwiinbacon