All of my Karmic Justice videos. KJ is a little used spell in Dark Souls that's only viable if you create a specific build, and even then you'll be lucky to win half the time. When it does work, the results are hilarious. When it doesn't, the results are usually just as hilarious.
A series of videos of me invading Sen's Fortress as a low level Dickwraith. Being SL30 means there isn't any waiting around for invasions, the red eye orb works almost instantly.
There isn't anything special about the gear involved. I use the Dragonslayer Greatbow to knock people off ledges (I don't have the stats to wield it, so it does almost no damage), and lots of Chaos Storm to clear out rooms full of phantoms. I get lots of enjoyment out of killing Tarkus, and kicking people off ledges.
A series of duels with my DEX/FTH build using two sets of Claws. On the right is a +15 that I'm using DMB with, on the left is either a +5 Lightning or a +5 Chaos set. Equipment changes, but it's usually I include some pieces from Kirk's armor to break up backstab attempts. Using the Hornet ring and the Ring of Favor and Protection, which lets me fast roll.
Note that this build is +3 in the Blade of the Darkmoon covenant, so DMB uses a higher MagAdj, which means it does even more damage than usual.