The mulligan should be straightforward, just keep the OP mage cards. In some matchups you want to get some removal or carddraw as well.
Concept for a spell damage mage in for The Boomsday Project.
I think it could be pretty good. Combo some cheap damage spells with Sorcerer's Apprentice and/or the new spell damage cards and you can deal an insane amount of damage. In the mid-game you can combo that with Unexpected Results or Vex Crow for some really annoying boards.
Actually, this could be really insane. You can run the best 1 and 2 drop in the game, can deal a total of 34 damage from your spells, not including a total of 9 spell damage. If your opponent kills your Mana Wyrm or Sorcerer's Apprentice you just refill the board with Unexpected Results or Vex Crow.
Not really sure about Mirror Image, Black Cat and Stargazer Luna. Mirror Image might be useless since you have enough removal and can even be bad for you if you have a full board. The other 2 are somewhat filler cards that probably work good in the deck because it uses spell damage well and lacks drawing cards.
Leave you comments below, I’m curious about your thoughts.
*EDIT: changed mirror image for thalnos, probably better. You might want to add the 2 mana 1/1 divine shield spell damage +1 as well.