You Still Dare to Oppose-- wait what

Your ally is dead! I have your Creature, and you STILL dare to oppose me?!

....KHAZAR WHAT ARE YOU DOING WHY ARE YOU BLUE


So I was casually just trololololing around and then all of a sudden... this happens.
I'm not quite sure what the heck is going on but for some reason either Khazar survived Nemesis and is now glowing blue and is totally pissed for me not helping, Lethys is posing as my deceased ally, or they had a secret love-child.

I hope to god it's not a love child.

what even is this category....