Pogo has released (15) 2008 Legendary Mix-n-Match badges in Badge Central for 12 gems each.
Theses badges will be available until December 31st, 2018.
https://www.pogo.com/challenge/find-badge.do?searchtype=mnm&pageSection=new_cp_bc_mnm_header
(https://i.imgur.com/l5CSd9T.gif)
tyvm