Ring of Stored Potential

Ring, very rare (requires attunement by a sorcerer)

This ring changes form depending on your Sorcerous Origin and never looks the same amongst different sorcerers. As a bonus action, you gain the ability to store or withdraw Sorcery Points into the ring. You can store up to 5 Sorcery Points into the ring of stored potential at a time, where they sit and cannot be used until they are withdrawn back into you.