This is a really neat concept. I like the dice customization aspect, and the minimalistic design of the art style and sound effects does give the game it's own charm.
This game could use some balancing work though, particularly make the first encounter more doable since my first attempt ended up with me and the enemy ad too many shield s that both of us can't die hehe.
Other than that it's a solid game, a neat idea well executed (mostly), I approve!