That geo set makes me want to finally level up my Ningguang even tho it would gimp my abyss progress by a month lolFound out something interesting today, apparently, the instructor set does not work as described. There are a few others (A Geo set that says 30% RES but actually means damage, takes it from C class to S class) but the instructor set stood out to me since I actually use it. It only gives the bonus to the two characters that create an elemental reaction. I haven't tested it out but now I'm curious since my rotation was fire breathing bear, lightning bird into razors elemental attack. I wonder if he has been getting any benefit from the support characters.