| Kelmar |
Interesting question...
If the rules don't specify, I would say the character would need to specify slug or pellets on the ammo for a shotgun.
I assume we are talking modern day shotgun and not a blunderbuss which never shot slug loads?
I would say you would designate your specific target that round for the spell to effect.
If you wanted everyone in area of effect to be hit by a spell that normally isn't AOE then you would have to house rule it.
imo, it would probably be a percentage rounded down among targets with the DC of the spell rounded down as well.
So to say, againts 4 targets each dmg rolled would be 25% of intended for each target with a DC to resist 25%. Normal DC of 12 would become a DC 9.
I'd have to think on it more but I'd do this off the cuff for a player just attempting it.