When Dartz and his "evil motorcycle-riding henchmen" aren't invited to Marik's Evil Council, he decides to hold his own. It's apprentally 'much better' because they serve pizza rather than tacos. Like Marik, whenever he swears, an [EFF!] sound is heard instead of the traditional bleep. In his revenge he planned on spamming Marik's YouTube account, which apparently did not work. In his second attempt to get revenge, he tried the "is your refrigerator running?" prank call, which spectacularly failed as Marik told him he didn't even have a refrigerator (Although Marik hadn't realized it was a joke until Dartz hung up).
Dartz and the others also apparently play Dungeons & Dragons according to the spam comments on Marik's YouTube account.
As of Marik's Evil Council 3, he is voiced by Takahata101 and his hair changes color whenever the shot changes. Dartz than began speaking with a strong Cajun accent and when he tells his minions to duel Marik, which they mistook it as to "do" Marik instead.
Overall, his character is a combination of Coiffo, the main antagonist of Perfect Hair Forever, and Boomhauer from King of the Hill, in terms of appearance and mannerisms. Also, ironically, he can't understand anything that Zombie Boy says.