Voadam
Legend
How did the DM give it to you? As a background item your character started with? Did your party beat up a high gorgon after it had gone three rounds with a wrack dragon? Did you find it on an orc commoner who threatened you with pies?
If it really bothers you then talk to him, but unbalanced games can be fine if the PCs are OK with that style of play. If there are real challenges and you are constantly going against things 4 CR above your level, or 10 levels above and you are expected to run even with the ring, then take advantage of the ride and enjoy. You might be the equal of a character 3 levels higher in terms of firepower, but your stats and hps have not gone up so you are not made invulnerable here.
If it really bothers you then talk to him, but unbalanced games can be fine if the PCs are OK with that style of play. If there are real challenges and you are constantly going against things 4 CR above your level, or 10 levels above and you are expected to run even with the ring, then take advantage of the ride and enjoy. You might be the equal of a character 3 levels higher in terms of firepower, but your stats and hps have not gone up so you are not made invulnerable here.