Talk:Nikana Prime/@comment-151.249.178.107-20160204234911/@comment-14475-20160204235107

It's in the Codex. It was probably bundled next to their augment mod code. It happens more often than not in Warframe.

The last time it happened was a few weeks ago. 2 weeks prior to Operation Shadow Debt. The 20 event mods were in the Codex before the event was officially announced.