In the Arrow episode "The Calm" (S03E01), the Vertigo legacy of the Count is continued by a new villain, Werner Zytle, who refined it into some "scarecrowesque" fear hallucinogen. When he is captured by Arrow at the end of the episode he says:
Tie me up and lock me down, it doesn't matter. There will always be a Vertigo, always someone to pick up the mantle. You have given it the power, don't you see? Don't you see?
Now I see what he means with the first part, that there will always be people picking up the Vertigo business. But what does he mean with his last sentence that Arrow has "given it the power"? Does he mean Arrow has actually contributed to the success of Vertigo somehow? But in which way? Do his words have any significance or truth to them (maybe in relation to a past episode I can't remember right now) or were this just the ramblings of a madman?