A while back a tinkered around with the math behind Thunderblow, so now it is time to do the same with a defensive SA. Parry. Right now it is a fairly rare SA, mainly wasted on low defense figures(or is it?), so it is usually overlooked. If you take a closer look, however, you can see that it shines even on the weakest off figures, as you will see in a moment. Let's first start with the normal probabilities:

Dice Roll Needed/% hit
3+_____________/ 97.2%
4+_____________/ 91.1%
5+_____________/ 83.3%
6+_____________/ 72.2%
7+_____________/ 58.3%
8+_____________/ 41.7%
9+_____________/ 27.8%
10+____________/ 16.7%
11+____________/ 8.3%
12_____________/ 2.8%


Now let's look at the Parry probabilities:

Org. Dice Roll Needed/ % hit
3+*_________________/ 81.5%
4+__________________/ 70.4%
5+__________________/ 57.4%
6+__________________/ 43.5%
7+__________________/ 29.6%
8+__________________/ 18.5%
9+__________________/ 10.2%
10+_________________/ 5.6%
11+_________________/ 2.8%
12__________________/ 2.8%

* exact difference between defenses, since there are multiple values that require a 3+ to hit due to crit. miss.


Wow, and to think that there are two relics in the near future that grant parry. Star Shield is going to be especially effective, since it also gives +2 to the wielder's defense. An original attack/defense difference of 6 goes from a 72.2% chance of hitting to a 18.5% just by equipping the relic!!!

Thanks Outlaw, parry provides more of a reduction in probability of being hit than I thought.

but remember, star shield is 70something points.

Star Shields parry is not that great. The plus 2 makes it so that you can only get a one more defense from parry.

Parry subtracts from attack, it doesn't boost defense.

Excellent info Outlaw.

Another fine service provided to the Realms by the DHC.

*searching to find parry figures, for new army idea*