Talk:Ur-Dragon/@comment-18781169-20130923031211/@comment-5166842-20130925000623

Each generation takes several days to die. So if you go in to the online Ur Dragon right now and he has full health, go back tomorrow and the same dragon (generation) has maybe half-health. Go back a day later and maybe he's down to 1 bar of health. Eventually someone will kill him, after which there will be a 'grace period' during which he will have very little health and all players have a chance to kill him. There's no set time limit to the grace period despite what some say.

So if you want an online kill you want to focus on the grace period. Sometimes the grace periods can be really tough and the dragon will show up with 7 or 8 hearts you have to destroy, but he can also have as few as one live heart, in which case one Maker's Finger ends the fight in a few seconds.

If that doesn't answer your question then hopefully someone else who understands what you're asking will chime in.