Forum:Worst villain of all the yugioh series

It's Fallensilence with another stupid question. What is the most evilest villain, in your opinion, in the yugioh series? It can be from GX, 5ds, or R or anywhere as long as it is related to yugioh. The worst villain for me is Pegasus because he cheats and put people behind bars in a castle. Tell your interesting comments below if it's even interesting.