put it into int - you'll probably have enough con until you get your belt
what feats have you got atm - that blesing should have coincided with you getting mythic tier 1 iirc, so that can be a mythic feat afaik if you want it to be
I agree with Dharkus, you'll need the int. Your con seems enough for now, just be careful where you stand.
Now this has abit of info on the opponents and the areas so up to you if you want to read. Also keep inmind that different campaigns turn out differently.
Spoiler:
Our wizard got selective spell after he had to hit the party more than once. Most of our battles are in close quarters and the frontliners mix with the bad guys.
Our wizard got selective spell after he had to hit the party more than once. Most of our battles are in close quarters and the frontliners mix with the bad guys.
Also when you get mythic I suggest the ability to cast unprepared spells. Bad guys are immune to different types of energy.
Edit: I'd worry more about your Wis than your Con. How's your will saves? :p