Quote:
Originally Posted by H.M.Gimlord 2. Critical Misses: A roll of a 1 on d20 always misses, but when using a ranged attack, if the trejectory of the attack passes through a square occupied by another creature (whether in front of or behind), a second d20 roll is cast. If the second roll ends up as a 20, the other creature is hit accidentally by the attack (be it friend or foe). |
If I was going to do this I think that instead of requiring a second roll I'd simply say that it automatically hit the intervening target for the sake of simplicity.
This rule is a bit more "fiddly" than most of what I've been doing but it's the kind of thing I'd normally consider using.