Glow

Version 0.11: This article may not be up to date for the latest stable release of Crawl.

Not to be confused with magic contamination, which was once simply called glow.

In Crawl, there are several things that can make your character glow. The only effect that glowing itself has is to negate any source of invisibility; however, glowing is caused by sources that are usually somewhat dangerous in and of themselves:

• Magic contamination: This is the most dangerous, as it will very likely leave you with some bad mutations as it decays.
• Corona: This spell makes you easier to hit, in addition to negating invisibility. Not many monsters cast it, but gnoll shamans, the Enchantress, and some player ghosts do. It can be resisted via magic resistance.
• Sticky flame: This causes fire damage over time that can be resisted with fire resistance, and also destroys your scrolls. The effect itself is only resistible by wearing mottled dragon armour or being a mottled draconian, but you can put yourself out by jumping into water.