collectible Rings with passive or active effects

[IQGobo]

Rings were well received on Discord as collectibles, power-ups or quest items. Maybe collect rings from optional, randomized shrine like mini-dungeons? Maybe each ring will have a different effect, like casting a light all around the player instead of the lamp cone in dark rooms, slow health regeneration, limited noclip (walk through mobs without touching and taking damage, maybe walk through/over fences), invisibility (makes mobs ignore the player), fear (mobs keep a distance from you) and such. Make them available as an exclusive pick, only one ring active at once (think songs of the flute on the inventory screen). Last boss in a lava arena and the player throws the ring(s) into the lava?

Other ring variations:

• Ring of summon metal crate. The crate could be used to temporarily block a narrow passage (for both mobs and players!), to bridge a gap in electrical wires or to bridge a narrow chasm without a Roc's feather. The crate will despawn on a timer and has a cooldown.
• Sonar ring, to help traverse dark rooms. Does either a slow moving sweep that faintly lights up along the beam for a short time, or moves like a water ripple, a growing ring that provides a small light source for tiles below the ring. Is it possible to have screen space shaders that use the collision maps of the tiles? Bat ring?
• sound detector ring. When equipped, it shows a sound wave cloud around moving objects in dark rooms. Make impacts of (bomb)arrows visible as well?