Puzzles & Survival Nova in depth

More in depth into Nova and the different abilisties of the Research Lab

[@slimdudedude7086]

If you buy a frag of a 5* hero is it only good for heroes you have or can you buy special superheroes list below

[@roycemclain]

if the hero is listed on the frag you can use it for that hero, even if you dont have him yet