No no, it is not Diggle's episode of the season yet! (Bing is still looking up results for H.I.V.E.)

"M. Wells, this prison is a joke. You need a button to open all doors… right there, not too far."

I really thought they had kept Oliver celibate for the whole year to make Olicity happen in the finale; so I was surprised by this episode. Kativer doesn't look likely either, another of my predictions gone wrong…

"Only the student can defeat the master"!

Except for all the family members who were killed by the other father!

It's the episode I have been waiting for all season. But now I hope that Nyssa, Olie and Sara somehow all end up in Moscow for the season 4 flashbacks (and then, forget the "present"!).

LAUREL: It is impressive how much Merlyn taught you in such a short time.
THEA: How would you even know? Aren't you late for your lessons at the gym?
LAUREL: (Blue Steel)

He was talking about making Olie "the next Ra's" at the end, so maybe he wants to transfer his consciousness/memories with some space magic mystical herbs or something.

She was saving that power for the billionaire vigilante… I mean, any one of them.

OLIVER: Diggle, you are a father now. I don't want you to put your life at risk anymore… unless I go on a suicide mission to get that immortal guy because he beat me (being immortal and all), and to save the Bin Laden of Starling City. Wanna come?
DIGGLE: Sounds good to me! What do you think, Lyla?
LYLA: What?… Yeah…

"My name is Ray Palmer, I have been locked up in my office and disappeared from the show for so long (Summer Glau-style) that you probably forgot my incredibly boring origin story, so let me repeat it again…" (ATOM theme song starts playing)

Oliver has become the dumbest character on the show… I mean, Leader of the League of Assassins material.

You knew the episode would be great when it opened with an AWESOME NINJA THREE-WAY just like in 'The Magician', but with Thea instead of Nyssa. And then Nyssa soon joined the fun.

Just another thing for Little Bruce to moan about.

See it's simple: Merlyn knows that only himself can beat Ra's, because "only the student can defeat the master". So he decided to have his own beloved daughter kill Sara (which would put the life of his only living child at great risk).

50 Shades of Ray doesn't mind Trickling Down his towel.

I was so sure that Oliver had been drugged by Merlyn and that it was his real reason for trying to save him.

Felicity finally got laid, meanwhile Oliver has gone through the whole season without shagging (not even in flashbacks!). No wonder he has become completely insane and is risking his life to save the guy who killed his dad.

Oliver, Diggle and Roy are all mooching off Felicity's paychecks.

RA'S: I don't want to kill you. I want you to marry my other daughter and become the new leader of the League, Bruce Wayne.
ARROW: My name is Oliver Queen…