Talk:Banshee (Warframe)/@comment-112.203.47.45-20130912105117/@comment-17749933-20130912135837

RNG is pretty much like that, I tried for 5 days for trinity systems then it came out when I was just playing at my friend place. The percentage of the systems might have lowered after the update, this Thread might help you, good luck to you finding the systems :)