Which means you'll have to increase the CR if you implement this rule since dragons are designed to face characters with magic weapons. Adding DR that the PCs can't bypass at the appropriate level will make them harder to kill.Psychic Warrior said:EXACTLY! All those dragons and whatnot with the DRs of 20/magic have nothing in reality. No character would be facing off against them without at least a +1 weapon so why bother with it at all?
You'll also see many fewer weapons with special properties. Everyone will be trying to get +5 before they bother with the flaming, defending, etc.