Introduction
When farming essences, we can use Engraving Permit to lock stats, narrowing down the range of stats and thus reducing the number of farming attempts.
Let's take the signature weapon of the powerful launch character Laevatain, Forgeborn Scathe, as an example. The required stats are as follows:
Use Farm on Region
Visit the Farm on Region page, select the corresponding location Wuling City, and choose the three main stats. If we select the skill stat Twilight as the other option, we will find that we can farm Flawless Essences suitable for two 6-star weapons simultaneously:

Try Different Stats
However, if we don't choose a skill but instead select the Attack Boost stat, we can farm Flawless Essences for four 6-star weapons at the same time!

Lock the appropriate stats according to your actual situation!
Use Check Essence
Currently, the highest exploration level allows obtaining three Flawless Essences at a time. If you can't remember all the required weapon stats, it's okay. Use the Check Essence page to select the stats of the current essence. It will show you if there are any perfect weapon matches, helping you decide whether it's worth locking the Flawless Essence. Once you find a perfect match, lock it!
