How to Reroll an Enchantment You Don't Want
Why reroll instead of grind
Grinding removes an enchantment; rerolling swaps it for a different one. If you got a bad enchantment on a good item, rerolling lets you keep the item and try again for something better instead of starting over from scratch. This is the feature players look for when they say they want to "fix" a badly enchanted drop.
Reroll step by step
Put the enchanted item into the mod's interface. Select the enchantment you want to change. Trigger the reroll action — the mod replaces that enchantment with a new random one rather than deleting it outright. The rest of the item's enchantments stay untouched, so you can reroll a single bad line without disturbing the good ones.
Manage your expectations
Rerolling is random, so you may need to repeat it several times to land the enchantment you want. Each reroll consumes whatever the mod requires as input, so stock up before you start spamming it. If a reroll gives you something worse, you can reroll again — the item itself is never destroyed by the process. Keep an eye on the output so you confirm the new enchantment actually applied before rerolling the next one.