I'm guessing Girb meant to ask this question in reference to the erupting vitality potion... not the Rune or Cube sense the potion is the only item in the pack that has anything to do with vitality.
I'm guessing Girb meant to ask this question in reference to the erupting vitality potion... not the Rune or Cube sense the potion is the only item in the pack that has anything to do with vitality.
The Erupting Vitality potion bonus also stacks with the XP Runes. You have to have vitality to use the potion though.