A few years back I had a group I played online with where I played as a bard/arcane archer. He was pretty terrible, but all the characters had special powers and mine was basically do a ton of damage every encounter or so if I hit. Well, we're fighting the BBEG and he casts Blindness on me, effectively disabling me completely and the party as a whole is being torn down. Seeing the end coming, and even though I was blind, I made a last ditch effort to take him down. I made the listen check and could pinpoint his square, so activated my special high damage ability and I let the arrow fly and rolled a d20. It came back as a 20. Now, of course in
3E, this doesn't guarantee a critical and chances are I wasn't going to get it since I was blind. Second d20: another 20. My blind arcane archer let loose an arrow of destruction that tripled my special attack damage and, by DM description, caught the BBEG right between the eyes. My character hears that the sounds of battle are subsiding and vaguely questions, "is it over? Have we won?"