User blog comment:NoNickNeeded/Urano Metria power source?/@comment-4999650-20130901135838/@comment-7418318-20130901141155

He didn't faint, just collapse back, but still conscious as far as I remember.

That was one of the reasons why I thought he might have done more than just transfering knowledg at first.

But on the other hand he was already very wobbly from the wounds Saggitarius gave him when he approached Lucy, so maybe it was just his injuries.