QoL buff for Elise: Quill Coat/SotAG thorns should also work with her Spiderlings

Maybe Elise isn't supposed to get Quill Coat and SotAG, but when she does get it, her Spiderlings can screw with how it works when the jungle creeps target them instead of Elise. As a small QoL change, make it so that when the monsters hit a Spiderling, they take the barbs damage.

Unless of course Riot doesn't want Elise using the tank jungler item...