Yorgburg was once a cloud giant so big, he looked down upon the eldest of dragons. This made him very egotistical, bragging to everything he can talk to about his size, stealing hill giant servants from any giant (even storm giants), and purposely walking through farmer's fields and calling it an "accident". It got so bad that even the chromatic dragons were willing to help the metallic dragons and giants to stop him. They placed a curse on him making him the size of a sprite and as strong as an ant. He learned his lesson but he just can't get the attention of anyone who can remove the curse.