For those curious, if a troop gets deathmarked, and the debuff is not cleansed, after 10 turns the troop has a 23.23% chance to die. The troop’s chances to die are as follows:
Turn | Mortality per turn (if still deathmarked) | Cumulative mortality
---- | ----------------------------------------- | --------------------
1 | 9% | 9.00%
2 | 8% | 15.48%
3 | 7% | 19.56%
4 | 6% | 21.77%
5 | 5% | 22.76%
6 | 4% | 23.12%
7 | 3% | 23.21%
8 | 2% | 23.23%
9 | 1% | 23.23%
10 | 0% | 23.23%
The formula to determine total mortality after 10 turns is daunting:
1.0 - ((0.1 * 1.0) + (0.9 * 0.9)((0.2 * 1.0) + (0.8 * 0.9)((0.3 * 1.0) + (0.7 * 0.9)((0.4 * 1.0) + (0.6 * 0.9)((0.5 * 1.0) + (0.5 * 0.9)((0.6 * 1.0) + (0.4 * 0.9)((0.7 * 1.0) + (0.3 * 0.9)((0.8 * 1.0) + (0.2 * 0.9)((0.9 * 1.0) + (0.1 * 0.9)((1.0 * 1.0) + (0.0 * 0.9)))))))))))