Board Thread:General Discussion/@comment-24215221-20180404130952/@comment-32233739-20180404132824

ultimately they are the same thing

a rebirth is a fanmade term for a unit that gets a dokkan to TUR but doesnt get Fierce Battle, it would get shattering the limit instead

typically, rebirths are for older cards that have been around without a dokkan (Kefla is an exception as she hadnt been out that long)

whereas generally speaking, a dokkan would come with an event when the card was released (some exceptions i.e. UI Goku, Jiren)