So as more JMK teams fill my arena shard, most of which are now running all relic 8s including relic 7-8 CAT I can say this is the GL that broke the balance. Maybe with exception of Rey there was wiggle room to move around in arena. JML beat SLKR, SEE beat JML and SLKR beat SEE with relative success.
Now these JMK teams are the strongest things I have ever seen. CAT one shots out the door, the assists are nearly game breaking. They are pretty much weak to nothing. There are comps that have success but certainly depends on how advanced the JMK is. For awhile I was having decent success getting position at payout using SEE R8 with tanks + wat. With CAT now even that gets decimated 70% of the time.
Pretty sure JMK is the new and improved SLKR.