"The same source" in this case would refer to spells that let you get temporary hp multiple times, I guess... not that I can think of any, off-hand. I thought claws of the vampire would have worked, but it doesn't give you temporary hp, it just heals you.Hypersmurf said:The rule for temporary hit points - according to the 3E Main FAQ, anyway, which is the only place I've seen a rule for temporary hit points - is that temporary hit points from the same source stack, but temporary hit points from different sources don't (however, multiple instances of the same spell are considered different sources).