Female Mage in Blue in a Fantasy Castle

Date: 11/25/2018

All I remember is that there were stone walls of a castle and a female mage/sorceress in blue (armor) I think... It was a bright sunny day. I recall seeing long flowing green grass fields. ----- The previous night I had been playing Magic The Gathering Arena and looking at *dirty* Warcraft Fan Art. Specifically: night elves.