To give another example of a bug in DCSS that went unnoticed for a while: there's a spell called Ozocubu's Refrigeration that for 6 months [1] dealt 1/3 the dam

To give another example of a bug in DCSS that went unnoticed for a while: there's a spell called Ozocubu's Refrigeration that for 6 months [1] dealt 1/3 the damage that it should have. It was considered very weak with a steep drawback before this (for a short duration after casting, you couldn't drink any potions), so it was ignored, and no one really questioned why it was useless. [1]: https://github.com/crawl/crawl/commit/ab847a317b82e2fb0316bf19c0c5e8f66163f2a7 https://github.com/crawl/crawl/commit/ab847a317b82e2fb0316bf...