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Compare → Strike 1d8+5 @ AC17 +9

1d8+5 @ AC17 +9

Damage distribution for 1d8+5 @ AC17 +9. Edit the expression or drag the HP slider — the URL updates as you go, so the page is always shareable. expression syntax →

Strike

Roll 1 twenty-sided die. Add +9. Compared against AC 17: you hit if the kept d20 face plus the bonus totals 17 or more (so the d20 needs to land on at least 8). A natural 20 always crits, regardless of AC. On a hit, deal 1 8-sided die, plus 5. On a crit, double the damage dice (the 1d8+5 becomes 2d8+5); flat modifiers stay the same.

min 0 max 21 mean 6.40 32/5 ±5.16
P(finish at 10 HP) = 34.53% (221/640)
  • 0 35.00%
  • 1 0.00%
  • 2 0.00%
  • 3 0.00%
  • 4 0.00%
  • 5 0.00%
  • 6 7.50%
  • 7 7.58%
  • 8 7.66%
  • 9 7.73%
  • 10 7.81%
  • 11 7.89%
  • 12 7.97%
  • 13 8.05%
  • 14 0.63%
  • 15 0.55%
  • 16 0.47%
  • 17 0.39%
  • 18 0.31%
  • 19 0.23%
  • 20 0.16%
  • 21 0.08%
Strikes to kill 10 HP expected: 2.26
  • ≤ 1 34.53%
  • ≤ 2 66.42%
  • ≤ 3 84.52%
  • ≤ 4 93.27%
  • ≤ 5 97.19%
  • ≤ 6 98.86%
  • ≤ 7 99.54%