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1. In the settings, enable the option to display all information.
2. Hover your cursor over a monster – it will display the X-Y range.
3. Look at the number of monsters in the stack and multiply it by their HP. You get the number N.
4. If the number N falls within the X-Y range, there is a chance to kill the stack. If the number N is greater than Y, the stack will survive.
5. It is impossible to calculate the exact value within the X-Y range; it's pure randomness.
