Editing Damage (section)

==== Unluck as combat modifier - variable R<sub>9</sub> ====
[[Horn of the Abyss]] {{wh}} introduced negative effects of [[luck]]. R<sub>9</sub> variable may be either 0 or 0.50, depending on whether or not the attacking creatures gets "an unlucky strike". This is determined by combat variable luck, which may range from -3 to 3. Negative values can trigger unlucky strike to occur. The probability of such a strike is 1/12 (8.33%) if luck variable is -1, 1/6 (16.7%) for luck equal to -2, and 1/4 (25%) for luck equal to -3. Luck variable may be affected by artifacts, creature special abilities, adventure map locations, spells and the [[Luck (secondary skill)|Luck]] secondary skill.