| Mad Master |
In issue #2, I posted my list of modified bonus types. In that list, two of the most used (and abused) types are gone: inherent and size types.
The first is gone because in my homerule bonuses and penalties only modify rolls or DCs, so a bonus type that only applies to ability scores is useless.
The second one is gone because size as it is in the standard Pathfinder RPG is no more in my games.
Usually, sizes above or below Medium generate tons of modifiers, require tables of conversion, and a lot of other stuff. This, for example, hampers creating new monsters, changing form to a differently-sized one (look at the rules for the Polymorph subschool), having weapons for different sizes and spells with the same effect no matter what the size of the caster, and so on.
Thinking about it, I noticed that all this stuff isn't really necessary. No modifiers to ability scores, no extra HD, no modified natural armor, nothing. You only need to modify maximum load, damage, attack rolls, combat maneuver checks, and STR and DEX based skill checks.
So, I came up with this variant rule:
- You get a -2 to attack roll for each size of difference between you and your target, both larger or smaller.
- The damage you deal to a larger creature is halved once for each size of difference (half for one size larger, one third for two, etc.), while it is doubled if dealt to a smaller creature.
- If you are larger, you get a +5 to combat maneuver checks for each size of difference against a smaller foe. You also get that bonus to CMD. No need to modify anything if you are smaller.
- You get a +5 bonus to STR-based skill and ability checks and a -5 penalty to DEX based skill and ability checks for each size above Medium.
- Carrying capacity already takes into account larger or smaller than Medium creatures, so no need to change anything here.
This set of rules requires work, because it's required to remove all the size modifers that are present in the game, the extra natural armor, the extra HD, the weapon conversion tables, and so on.
Simply said, larger or smaller creatures are built just like standard Medium ones, with the same base scores, the same number of HD, the same Cos or number of HPs, the same base damage, etc.
What governs how many Hit Dice they have is their CR.
Normally, a NPC has a Challenge Rating of Level -2, but most creatures are weaker than that, much like a commoner NPC, so they should have a CR of Level -3.
This means that creatures have the following HD/levels:
Commoner or "average array" monster - CR+3 Hit Dice.
NPC or "NPC array" monster - CR+2 Hit Dice.
PC or "Heroic array" monster - CR +1 Hit Dice.
To this, you just add 1 HD per size below Medium or subtract 1 HD per size above Medium. Recalculate the creature's stats from that.
As always, if someone already posted rules similar to these, please feel free to add a link below. Comments and feedback would be appreciated.