What about making blood sacrifice grant brilliant for a duration proportional to the damage taken?
Multiple tiers with different mechanics could also work. (probably easier to implement with modding) PL0: current blood sacrifice PL4: brilliant blood sacrifice PL8: free spells when near death Alternatively current blood sacrifice split into 3 tiers (not sure if possible with current modding tools) PL0: small hp loss for random spell 1-3 PL4: moderate hp loss for random spell 4-6 PL7: large hp loss for random spell 7-9
