so first you open her talent screen and read her skill! hope this helps 🩷 (but seriously tho what you do is you fill up her night soul blessing bar with enhanced normal attacks and that gives u her res shred, with the scroll set u have to trigger crystallize for the element u want to buff)
Use her skill, and then use her basic attack 2 times to activate her doritos. Her doritos will have colors based on her teammates' elements. When you activate her doritos, she will apply 36% resistance shred of those elements to enemies.