Originally Posted by
gartius
and you nerf classes like the rogue or the ranger who rely on the dm letting them know of these sort of issues in order to make informed decisions as they level up.
example: a combat focused rogue comes in not being warned that its an undead campaign, you see that the player is struggling to be able to contribute meaningfully as a result of this-you've basically made a character useless. Congrats...
example 2: a ranger has made choices for favoured enemy its a an undead campaign where the choices for favoured enemy havent appeared at all. Congrats you've not done your job as a dm in informing them of this or giving them situations where their abilities would actually be useful.