[ No, nothing goes off when V gives his new weapon a twirl. Declan just stands back to watch, looking rather pleased that he seems to like it already. ]

I’m flattered you think so. You’ll need to attune to it to unlock its full potential – that basically means you must form a bond with the weapon. Sit and meditate with it a bit, or practice with it. So long as your focus is on it, the attunement should take.

But, for now, give the handle a twist and see what happens!

[ And doing so will cause the entire shaft of the cane to transform into a blade with a sharp click. Twisting the handle the other way will cause it to revert. ]