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Compare → Strike 1d8+5 @ AC15 +9

1d8+5 @ AC15 +9

Damage distribution for 1d8+5 @ AC15 +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 15: you hit if the kept d20 face plus the bonus totals 15 or more (so the d20 needs to land on at least 6). 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 7.35 147/20 ±4.81
P(finish at 10 HP) = 39.53% (253/640)
  • 0 25.00%
  • 1 0.00%
  • 2 0.00%
  • 3 0.00%
  • 4 0.00%
  • 5 0.00%
  • 6 8.75%
  • 7 8.83%
  • 8 8.91%
  • 9 8.98%
  • 10 9.06%
  • 11 9.14%
  • 12 9.22%
  • 13 9.30%
  • 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: 1.96
  • ≤ 1 39.53%
  • ≤ 2 76.02%
  • ≤ 3 91.79%
  • ≤ 4 97.39%
  • ≤ 5 99.21%
  • ≤ 6 99.77%