Also applies to Ice Stars, as some people have mentioned, although that spell is much worse than Desecration -- heard reports of game crashes. Would expect that they are related in some way. Desecration is more frustrating because it's a core FW spell.
The other two are expected, but i'm really surprised about grim well. Maybe it's anything that taxes the system, big affects or large aoes ?
My guess would be it has to do with the specific graphics effect -- Grim Well probably shares some visual element with Desecration.
