Radioactive Girders (Girder Icon) were a limited time currency during issue 4 of the Superheroes Event 2015. They were needed to unlock issue 4 prizes and obtained by completing the Monumental Battle questline.

Radioactive Girders Prize TrackEdit

Prize Radioactive Girders to Collect
Rad Mobile Girder Icon2
Kane Manor Girder Icon3
Radioactive Man Girder Icon5
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