Nobody was more surprised than me my first game, when I killed my biggest rival and his empire imploded without even ruins left behind.
I hope they make that optional in the future, it makes little sense to me (you can explain it in story or strategy but in either its a stretch) and anticlimactic. I was hoping they'd go for "banishment" or something (yes, like MoM) for 20 turns but I guess they're trying to work it into the dynasties.
