Berserk (mutation)
| Rank | Effect | Flavor |
| 1 | 1% chance of berserking after each player attack. Reduces chance of passing out afterwards to 3%. | You tend to lose your temper in combat. |
| 2 | 3% chance of berserking after each player attack. Reduces chance of passing out afterwards to 2%. | You often lose your temper in combat. |
| 3 | 9% chance of berserking after each player attack. Reduces chance of passing out afterwards to 1.5%. | You have an uncontrollable temper. |
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Often referred to as "berserkitis", Clarity or "Near Starving" hunger negates this. | ||