Janus Helm

artifact

gives a similar set of powers to that of Janus the Roman god

lets you look at beginning/endings, form gates, transitions, observe time for about a year span, understand the duality of everything, create in space doorways/passages, and endings, the user also becomes bipolar, and gains another personality that is the direct contrast of user for the duration of wearing the helmet, can see the future and past for a years span from present time.