Managed to beat all of the Relay Defense maps and while I really like the mode, the stats and enemy density are too much. The 6th map is the one that gave me the most trouble rather than either of the Abyssal difficulty ones, and the fact that we're getting shards at all as a reward is awful. And like, every enemy has Pivot while the healers are absurdly dumb when they effectively heal any all to full. Hopefully they tone it down a bit with future iterations but not too much that it becomes too easy, because I do enjoy having to be more deliberate with my brigade and make use of friend units more extensively.