Syn Shenron
Syn Shenron, known as Yi Xing Long (一イー星シン龍ロン Ī Shinron, lit. "One-Star Dragon") in the original Japanese version, is the seventh and last of the evil Shadow Dragons to appear, and the last villain to appear in Dragon Ball GT. He transforms into Omega Shenron after swallowing all seven of the Dragon Balls (this is his special power, rather than having power over elements).