These 2 champs work so well together! You can win games deploying no other champs than these 2 while running Meta... A cool trick which requires 5ap is to drop a Grim Well after using Mind Wipe Aura after a Phantom Dash to set up a kill or 2 the next turn. If you have Lich Magistrate deployed that's some more lols as it means you can get a hex off followed by restoring the Magistrates HP. If you run Genesis Lich, Brightmoon Lich is auto include.
I don't mean to be a **** but i'm pretty sure we all realised that a while ago, like when Brightmoon was released. Honestly though I don't see why people aren't running Brightmoon more, his stats are great and his abilities make him really hard to deal with. For that cost he is definitely meta worthy.