Possible to have an option to cast CotA on CD?

[Chickenfrys13]

When one of my CotA dies (Barb Call of the Ancients), and has only two alive, it'll just keep going with two alive forever. I've had to come back to the bot to manually cast CotA since it never remakes a game and constantly does rifts.

Just asking for an option to cast it upon 1 dying or just on CD