Clint_L
Legend
I like emphasizing the deleterious effects; I would do both - lower the radius but also make it incredibly dangerous within that radius.No. The best way to "nerf" it is to bring back all the balancing drawbacks it used to have when it was invented as a 3rd level spell: have it always fill 33k cubic feet, blowing back into hallways if applicable (casting it indoors should be very risky), have it ignite all flammable objects in the blast, and melt precious metals (coin and jewelry).