Berserkers aren’t just a character build from Skyrim, they first appeared in old Norse poems and were feared warriors in their day. But how did they obtain supernatural strength and invulnerability? Surely their legendary battle frenzies were not more than embellished stories? The stories were true. Berserkers achieved their frenzy by chasing a dragon of a different sort. They took intoxicating drugs before battle—most likely hallucinogens—that made them fearless, stronger and dull to pain and danger. Researchers have discovered that the drug bufotenine is capable of reproducing the berserk rage.