Arrow: Nyssa Warns Laurel On The Dangers Of The Lazarus Pit In New Restoration Clip

Laurel (Katie Cassidy) goes to extremes in a new clip from this Wednesday's episode of Arrow: "Restoration."

Laurel wants to use the Lazarus Pit to resurrect her sister. She's surprised that Nyssa al Ghul (Katrina Law), who was Sara's lover, doesn't support her on this endeavor. "The pit gave my father a long life -- longer than what was natural and much longer than he deserved," Nyssa tells her. "But he paid a dark price for it. A price Thea is no doubt paying now. I wouldn't wish it upon my most bitter enemy, let alone my beloved."

Check out the clip in the video below.

The growing tension between Oliver (Stephen Amell) and Diggle (David Ramsey) puts both their lives at risk when they go after Damien Darhk (guest star Neal McDonough) and a H.I.V.E. deployed meta-human. Meanwhile, Laurel (Katie Cassidy) talks Thea (Willa Holland) into returning to Nanda Parbat to ask her father (John Barrowman) to put Sara (guest star Caity Lotz) into the Lazarus Pit. However, Laurel is surprised when Nyssa (guest star Katrina Law) refuses to do it.

Wendey Stanzler directed the episode written by Wendy Mericle and Speed Weed.

"Restoration" episode of Arrow airs Wednesday, October 21 at 8 p.m. ET/PT on The CW.