Why is the gem double cloned?
I had just used a friendly play clone. The demonic embraces gem on the right was the only gem in play when the clone was activated. As the floating text suggests, two clones of that gem were created.
"Clones a random in-play gem from your friendly target." I don't see that I'm missing something in the description of the clone gem itself. I'm not putting this under Bug, because I feel I'm just missing something obvious....