Magic is Changing My World."
When squeezed for time, DMs are tempted to fall back on the worst solution—a quick and artless nerf. ... The alternative to nerfing is thinking long and hard about the spells in question and their impact on the assumptions we make about our fantasy worlds. The spells that give DMs night sweats are those with deep and subtle ramifications on world-building that game designers didn’t examine thoroughly. It’s the law of unintended consequences at work.