The recently revealed synopsis for the next episode, titled 'This is Your Sword,' of Arrow alludes to some major plot twists.

Oliver Tasked With Eliminating Diggle In Upcoming Episode?

As Oliver (Stephen Amell) takes the final steps as Al Sah-Him of the League of Assassins to claim Ra's al Ghul's (Matt Nable) throne, he will have to make some very tough decisions. Ra's al Ghul will continue to make life tougher for everyone, as is revealed in the synopsis for the next episode. Nyssa will be in particular danger as Ra's al Ghul will threaten her. In the preview for the episode, Nyssa is seen holding Oliver captive but it seems like Ra's al Ghul will rescue him and will warn Nyssa. The brief for the next episode also reveals that Ra's al Ghul will be revealing some shocking news. There is no way of knowing what it could be but we are guessing that it will definitely serve as a major plot twist in the show.

Here's the official synopsis:

'Evil Oliver' Is 'Going Out Fighting' In Finale, Stephen Amell Teases  

"AL SAH-HIM TAKES HIS FINAL STEPS TO ASCENSION; ROY AND THEA REUNITE - Oliver/Al Sah-him (Stephen Amell) finishes his training and is left with two final tasks to become the next Ra's al Ghul. Ra's (guest star Matt Nable) threatens Nyssa (guest star Katrina Law) and delivers some shocking news. Meanwhile, Malcolm (John Barrowman) makes a surprising offer to Team Arrow and Thea (Willa Holland) goes to see Roy (Colton Haynes). Wendey Stanzler directed the episode with story by Erik Oleson and teleplay by Ben Sokolowski & Brian Ford Sullivan (#322). Original airdate 5/6/2015."

The episode will air on May 6 on The CW.

Watch the preview:

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