That is known as the Core Mechanic and Lots of people find it to become exceptional on the mechanics utilized by before editions of D&D, like the very first-version hit tables or the next-version advert&D "THAC0" and https://nevelath352319.eedblog.com/32043168/how-much-you-need-to-expect-you-ll-pay-for-a-good-dice