Board Thread:Questions and Answers/@comment-33011666-20170902101222/@comment-33728484-20170902104845

You need identical cards to unlock paths, and if I were you I wouldn't farm 4 more LRs...

...and even if the card is already a TUR (dokkan awakened UR, with a max level of 120), it would be better to use the Reverse option before unlocking the paths in the potential system.