I wish I had seen Pulp Fiction. Unfortunately, it never came to the theater here in What.
I voted for the Saprazzan Vizier/Counterspell one. Spidey has the reason down pretty well; it's the same sort of insult as "Was that it?", but vaguely...cerebral.
Actually, my favorite flavor text of all counterspells is from Intervene: “At first I simply observed. But I found that without investment in others, life serves no purpose.” --Karn, silver golem
Not all that clever, but very nice.