Apparently Destiny tweaked the Tower purple ball, haha, it looks cool and sorta lights up when you hit it.
“The Purple Ball has been reborn - shinier, more metal, but just as purple in spirit,” Technical Artist Nate Hawbaker assures us. “It has captured the hearts and minds of so many Guardians who visit the Tower in search of their combat wares. We sought to honor their playful rituals by infusing it with the magic that players have clearly assigned to the second most important sphere in the game."
“The Purple Ball has been reborn - shinier, more metal, but just as purple in spirit,” Technical Artist Nate Hawbaker assures us. “It has captured the hearts and minds of so many Guardians who visit the Tower in search of their combat wares. We sought to honor their playful rituals by infusing it with the magic that players have clearly assigned to the second most important sphere in the game."