"All year long we've been teasing what comic book fans know as the Lazarus Pit," said Guggenheim. "We'll learn a lot more about that in 316... The world of magic fits pretty well into the world of 'Arrow.' We've already seen superpowers on the show. Once you've seen super powers, the occult and magic -- that actually fits better in 'Arrow' than superpowers."
Fans have been expecting this development ever since the debut of Matt Nable as Ra's al Ghul earlier this season. In the comics, al Ghul uses the Lazarus Pit's restorative properties to heal wounds and, on occasion, resurrect the dead. Ra's al Ghul's life has been extended for centuries in the comics thanks to the Pit. Despite being in integral part of his character, the Lazarus Pit has yet to be adapted fpr any of the character's live-action appearances -- although that looks to change during Wednesday night's "Arrow" episode.
Theories originally ran rampant that the Pit would be used to heal Oliver Queen following his initial encounter with Ra's al Ghul. That didn't pan out and actor Stephen Amell denied that a Lazarus Pit would be used on his character, but he did tease in a January interview with Collider that it would be a part of the show. "That's not something that's going to be used for Oliver," Amell said of the Lazarus Pit. "We've seen a Lazarus Pit."
"Arrow" returns this Wednesday on the CW.