We've finally arrived at the Arrow Season 2 finale. Check out a clip from "Unthinkable" here.
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It all comes down to the Arrow Season 2 finale. Check out the official CW promo here.
Added:

Arrow Season 2 Episode 23 Quotes

Gee Sara, you could have called before you invited ... seven assassins into our lair.

Felicity

He lacked the conviction, the strength to pull the trigger, but not you Thea. You are truly my daughter and I could not be more proud.

Malcolm