I'm A Banana
Potassium-Rich
triqui said:The space you need in the monster stat block is the same. Why do you agree with radiant damage and not with turn undead?
Because radiant damage is a broad resource that many characters could conceivably tap, while turn undead is a narrowly specific rule that not every campaign will have.
What if my game doesn't have clerics? What if my clerics worship a god of the earth and so don't have turn undead?
Radiant damage, meanwhile, comes into play in other circumstances aside from one limited class ability.
It would be kind of like adding a bit to every statblock that said, "If the druid attacks this creature while wildshaped, it has X special effect." Or "If the wizard hits this creature with magic missile, it has X special effect."
Not a good idea as a general rule, though absolutely fine when you can control for the characters who interface with it.