Board Thread:Questions and Answers/@comment-24596086-20150311105638/@comment-25858944-20150318080757

For the encounter of the WG in tower, you will only know for certain during floor 21 to 50 which is the first GG. After that, you have 50/50 chance to get the second GG as WG or the first GG, then it continues for every GG that you obtained.

You won't know them since it will have the same dialogue which is

"M-Master, I sense........bla bla" then after that you will fight with random WG except for the SWG.