How about something for your spells in DnD Next
Brutal Spells
Feat
Benefit:For all damage dependent effects for your spells, you reroll all dice that show a natural 1.
Thoughts?
Daily Punch 5-9-13
How about something for your spells in DnD Next
Brutal Spells
Feat
Benefit:For all damage dependent effects for your spells, you reroll all dice that show a natural 1.
Thoughts?
Throat Punch Games 
I would state you have to take this feat per each damage dependent spell and the effect is that you gain advantage