Ring of the Grammarian

Ring of the Grammarian
"Y'all better mind your P's and Q's."

Wondrous Item, Ring Weight: 0lb

A brass ring decorated with a monocled owl.

Strange Diction. Once per day, when you cast a spell, you can change one letter in the spell's name to create an effect other than what its description states. For example, you can attempt to cast cause bear instead of cause fear to summon a bear. Work with your DM to settle on a reasonable effect.