an class
This is a class that acquires the powers of monsters by eating them. Unfortunately¸ you will also acquire their visibly monstrous parts¸ and their horrific desires.
Level-up¸ and gain more flexibility in what consuming the flesh of the freshly-departed can do for you!
This class should be compatible with any OSR or D&D-like game with the standard six stats in the standard ranges¸ as well as things such as Levels and Hit Dice¸ or their equivalents.