There are groups running around as a DRK, AST, AST, AST in frontlines, and its very disruptive to normal frontline matches. When this team operates they can down a full alliance without much counter play, and there are several groups, on multiple Data Centers, that are abusing this to make other players have less fun. On Crystal, other players from Aether travel here to do it, and no one likes to see them in the game because of what they do.

This Class-Combo is actively making the frontline game mode unfun when they appear, and its personally irritating to see the same people doing the exact same menial thing and succeeding.

So, please nerf DRK and/or AST.
DRK's Salted Earth pull has always been problematic,
and AST's Macrocosmos has too big of an area of effect to be that good at dealing damage on top of the compiled damage returning as a heal in Microcosmos.

The '50% damage decrease after one target' can be added to AST, even just for frontline. Maybe even the same for DRG's limit break as it has been used to similar effect in the past, though in recent times it has been unfavorable compared to AST.

I know adding changes to frontlines exclusively may be seen as a slippery slope, but these would be a few the community could handle. There's already a flat damage reduction for most classes. And it wouldn't change how the abilities fundamentally function and cause confusion.

In conclusion, this method of running in to kill half the enemy team with a single button press is not conducive to a fun experience in frontlines. A reward as great as that should not be so simple to execute, especially coming from three healers.