Good afternoon fellow gamers,
I am a little concerned that a creature with DR/Magic doesn't scale very well for many creatures, especially with the prevalence of magical weapons in general.
A dragon with DR 15/Magic is just as vulnerable to a +1 sword as to a +4 sword, and that doesn't seem right to me.
So my proposal is this: A creature with DR #/Magic divides its Hit Dice by 5, and this is the minimum enhancement bonus required to bypass the damage reduction (rounded down).
So a creature with 5 HD and DR 10/Magic can be bypassed with any +1 (or higher) enhancement bonus on a weapon. But a creature with 20HD and DR 10/Magic would need a +4 enhancement bonus on the weapon.
What do you think? Is there something I've missed? Should I change the scale/formula?
Thank you for your time.
Very Respectfully,
--Bacon