I've got a good one, now!
After a long string of losses to Duel IRL (me with B/R Void and him with Type 2 Jank that topdecks AFTER the three Addles), I managed to pull an amazingly dumb move off. At the end of Duel's turn, I had three land in play, a Void, a pair of Skizziks, a Vampiric Tutor, and two irrelevant cards in my hand. I needed to Void to get rid of his creatures as soon as possible, so I Vampiric Tutor, digging for a Dark Ritual. I search through the deck, grab one of my two foil Rituals, and proceed to SHUFFLE MY VOID INTO THE DECK and put the Ritual on top. I untap, draw, cast the Ritual, look at my hand, and go blank.
Ouch.