While Long.dec above is a pretty perfect example of the kind of Draw-seven deck that has historically been the most common source of turn 1 kills the format was once known for, the most extreme example since the advent of the four-of rule is without question the following Broken LED deck from the 1999 Duelist Team Challenge at Origins
I've found these can help with the having to beg for other players mercy, since you can help refill their hand / give them some extra cards, especially with the Folio giving all players no max hand size
I'm really proud of the job we did on Commander (2016 Edition)
When your opponent enters their upkeep, you can choose to have them gain control of Slicer, Hired Muscle, it gains goad so it has to attack a player other than you, and cannot be sacrificed
For many people, pulling this Pikachu was their first significant hit from a modern Pokemon set, and that personal connection has created a deep reservoir of demand that shows no signs of drying up