So I was feeding a Warchief to farm some runes and as he was going for the last hit his bodyguard stood in front of him (as to take the hit) and the last stand thing had a blue circle moving with my mouse (like the last chance finisher thing) which I've never seen following my mouse before. I've never seen this happen but it seems like if I had done the last finisher thing his bodyguard would have killed him. What would have happened after that, I don't know. If anyone has experienced this, tell me how and what happens.