Me and a few of my friends have downloaded the Spells-And-Shields mod. Everything was good up until we got the magic shield enchantment. It seemingly does nothing but I had recently found out that it will degrade your armor durability into the negitive values. It seems the enchantment is tied to getting experience orbs.

Thank you for the report. Which version are you playing on?

Since 63063fc the enchantment now only goes on Shields

1.19.1