I can't think of a better time to open your Kegs than today! All Kegs will have a guaranteed Legendary card as your final pick.
Quote from @PlayGwent
Get your Legendary cards! ✨
For the next 24 hours, all three cards presented in the “Choose 1 out of 3” part of the keg opening will be Legendary! This means a guaranteed Legendary card in every keg you open till Friday, September 14th, 12 PM (noon) CEST.