Originally Posted by makinaz

I've been playing since release and I don't know what an SRB is supposed to be.

Well during Star Lily RB event, I saw SRB with 15m hp with 15minute spawn time. So that's one of example of SRB, although 15 minute spawn time is bit tight

Not sure if this event have SRB since I can't find current event raid boss info on jpwiki