"Patches of burning ground" in labyurinthine maps

Many of the new maps consist of narrow corridors that make large effects on the ground unavoidable. While the map is beatable, it is a huge slog even with dousing charm and fire res. The floor is more dangerous than the monsters, making it feel like Sanctum; once again.

Also, this mechanic makes elements like Ritual unplayable because competing area denial effects are too strong for (most) current characters.

P.S. I meant this for the Feedback forum, sorry.