[RPG] On a critical hit, does one double negative modifiers

critical-hitpathfinder-1e

Let's say a character with an 8 STR confirms a critical hit with a short sword. A normal hit for them would deal 1d6-1 damage. Does the critical deal 2d6-2?

Best Answer

No, it doesn't. The critical deals (1d6-1)+(1d6-1).

From combat#TOC-Critical-Hits:

A critical hit means that you roll your damage more than once, with all your usual bonuses, and add the rolls together.

From combat#TOC-Damage:

Sometimes you multiply damage by some factor, such as on a critical hit. Roll the damage (with all modifiers) multiple times and total the results.

I read this as "roll the damage (1d6-1) twice and add together the results". Since a hit always does at least one damage (which might be nonlethal, as below), the damage roll of (1d6-1) has a range of 1-5 damage. This critical hit, therefore, has a range of 2-10 damage. If you roll two 1s then you do 2 nonlethal damage. If you roll 1 and 2 then you do 1 nonlethal and 1 lethal damage. If you roll two 6s then you to 10 lethal damage.

Rolling 2d6-2 is not the same — it has a range of 1-10.

From combat#TOC-Damage:

If penalties reduce the damage result to less than 1, a hit still deals 1 point of nonlethal damage."

It is the "still deals 1 point of nonlethal damage" which explains why the multiple rolls need to be made separately when there are negative modifiers. Or, to put it another way, doubling (1d6+1) is the same as (2d6+2) but doubling (1d6-1) is not the same as (2d6-2).