First of all: to move the soul you need to use the arrow keys. The 92 is your max hp. You can change that easily in the 'hp 10 and hp 2' sprites :) Right. onto the battle we go! to add attacks you need to add a costume to the sprite costume in the attack sprite.
https://scratch.mit.edu/projects/410549873 A battle exemplar that requires you to press space to attack https://scratch.mit.edu/projects/410113184/ a battle exemplar that will attack automatically