If they die at the same time (like in combat), they come back one at a time, and you attache the Scythe to each one in turn, before the next comes back.
Abali na onwu di kwa nnoo, mgbe ichoro ka ahu gi zuru ike ma hie ura, i gabigara ihe omuma dika nke gi gabigara mgbe itufu aru ma onwu.