| merpius |
This is the relevant FAQ.
So we need to step up twice (because Strong Jaw steps up the size twice). The first step is easy; 12D6 -> 16D6. Done.
Step 2 is a bit harder; the various rules to apply don't seem to give any additional insight. So we have to try to extrapolate. I would tend to be a bit conservative on this, so I'd apply the same jump for this step as is applied for the previous (2 in this case) steps; +4D6. However, an argument could be made that the rate of increase seems to be accelerating; there's 4 jumps that are only +1D6, then 2 jumps that are +2D6, then 2 that are +4D6, so, perhaps, after 16D6, the next jump should be +6D6 or +8D6. All of that is just how you want to read the pattern, though, so it is up to the GM.
This is all, of course, assumign that this 12D6 attack is not from a Guargantuan or Colossal creature; if it is, the spell spells it out nicely; it becomes 24D6 because instead of increasing it by 2 sizes, instead it simply doubles it.
| Atalius |
How did you get 12d6 in the first place?
Do remember you only get 1 source of virtual size increase and 1 source of actual size increase. Multiple virtual or multiple actual size increases don't stack.
I think the best you can do (with Strong Jaw) is 3 effective size increases.
Started with a 6D6 base, vital strike to 12D6.