Arrow season 3
Oliver Queen becomes Al Sah-Him - new leader of The League of AssassinsThe CW

The penultimate episode of Arrow season 3 titled This Is Your Sword, airs this Wednesday, 6 May on The CW network.

As the last steps towards becoming the leader of the League of Assassins, Ra's al Ghul wants Oliver to destroy Starling City and marry his daughter Nyssa al Ghul.

Will Oliver actually go through with it? Producer Marc Guggenheim had this to say when discussing the upcoming episode with Entertainment Weekly: "It's both a wedding and a marriage... The ceremony actually finishes. It does reach a conclusion."

In a new video (below), Guggenheim promises that episode 22 will be one of the most "intense" the show has ever had.

The official synopsis for This Is Your Sword reads: "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)."

Meanwhile, in last week's episode, Ra's al Ghul teased what could be the next big villain of Arrow season 4 - HIVE, aka Hierarchy of International Vengeance and Extermination, is a DC Comics supervillain group. Ra's referred to it as a group headed by his former friend Damien Darhk who is a minor villain in the comics, reports Franchise Herald.

Arrow season 3 finale episode to introduce Batman's son Damian Wayne as new villain?

Arrow season 3, episode 22 airs this Wednesday, 06 May at 8pm ET on The CW. You can watch the episode online on The CW website by clicking here.

Or, you can click here to watch the episode via live stream online.