It's not bad
This game needs work, I like the idea of a dice roller combat game but the system frankly is lacking as it sits.
Improvement would be to have a Roll/Hold system and compare totals, or use Dice combos to unleash attacks. So if you get a run of dice 1,2,3,4 it does a 4 hit combo attack. or get 3 6's summons a devil to attack the enemy. Or have a pool of specialty dice to use like fire,ice,earth,lightning or something for magical attacks.
Lots of potential.