Explosive Fighting

You gain a proficiency in making sure that when you hit, you hit hard 

- You choose a die (that is not a D20) that you feel will aid you in battle, this die now becomes "explosive" when you hit in combat and roll the highest possible number on your chosen dice you get the option to explode that dice and roll it again and add that new number to the pre existing damage.

- You have 2 explosion points (3 at 10) and (4 at 15) that regenerate every long rest. 

Explosion points only work in combat and would not work with a bless spell for example or bardic inspiration.