MyBlackNinja

D Grade Ninja was a knockoff / tribute to MyWhiteNinja

Origins
See: The First Book of My White Ninja

Twitter Playing Card Game
This was so much awesome. It contained rare cards and l33t cards, all thought up by @MyBlackNinja. Until YAN came...

The MyWhiteNinja Comic
The "MyWhiteNinja Comic" ran for approximately two months in early 2012 with 50+ story updates that each included custom artwork for the update. It operated using tumblr to post the updated and involved an evil Buzz Aldrin.