The Sparkstone

biggggg5 asked: Hi, sorry to bug you but i am new to watching Critical Role and I just watched Keyleth do her trial of fire and recieve that sparkstone thing. I was wondering if you knew if she ever uses it? I dont want to know who she would use it on but if you could let me know what episode she uses it in that would be great. I figure if anyone would know you would. Thank you very much!

Someone DOES end up using it in in the middle of battle in Episode 28 (29 minutes in)!