This example is from Wikipedia and will be reused beneath a CC BY-SA license. The reason for the hearth was firm to be accidental, instead of nevertheless smoldering leftover debris from just five days prior. From Wikipedia

If an issue or disagreeable condition smolders, it carries on to exist and may develop into worse at any time:

champion generates an explosion that deals Bodily harm to nearby enemies, with subsequent explosions in opposition to the same goal working 75% injury of your prior smolder explosion's hurt.