User blog:Allgorhythm/Subduing Ur-Dragon Generation 722--Part 2

I'd expected Generation 722 to go a lot more quickly than it did. The big heart on the chest was virtually untouched so I thought I'd see how robust it was. It took half a dozen times inflicting close to the damage each time before it was destroyed. After it was destroyed, the servers synched and the heart reappeared. It took two more sessions to destroy it for good.