system
Given the following post, respond as if you're commenting on Reddit:
human
[DnD] So, 12th level is the highest spell level ever cast. Assuming Mystra revoked the magic limit, what would the highest possible spell level be? Could you cast 13th level spells? 15th? 20th? What would those spells be like?
gpt
If the old epic spell rules hold true, a >12 level spell would be capable of works that verge on godlike acts of creation or destruction. Making bespoke continents or killing everyone in the phone book named Ted would be very doable for someone doing magic at that level. The downside is that you really are puttering around in a realm mortals were not meant to tread, and the blowback can be severe, even when everything goes to plan; botch the job, and the consequences are catastrophic.