Hussar
Legend
First of all, check out my new forum title.
Second, "I use Insight..." doesn't tell me what your character is doing, even if I know what your goal is. Without that, I don't know if an ability check is needed. See my post to Frogreaver on this matter.
If you really want to "actually use the skills on [your] character sheet," all you have to do is come up with an an approach to the goal that is likely to have an uncertain outcome and a meaningful consequence for failure. That doesn't sound like very smart play to me as I've laid out in the very first post in this thread, but that's in your control.
But, for the umpteenth time you STILL HAVEN'T GIVEN ME AN EXAMPLE OF WHAT THAT NARRATION COULD BE. It's easy enough to say, "I don't know what your character is doing" but, since I'm asking you REPEATEDLY for an example of WHAT CAN I DO? and you STILL refuse to answer, it become extremely frustrating.
So one more time, what narration can I do to determine if my paladin knows if a specific spell would affect a specific monster.
Everyone has avoided actually answering that question. Not one of you has managed in several posts now to actually answer a simple question.
Since you've determined that he doesn't know, and it wouldn't be an issue if anyone else in the party knew, I'm going to assume nobody does. In that case, go ask someone. Other people do know. Go up to a sage or a library and do research. Look for ways to get rid of intellect devourers. It's pretty easy.
No, I have not determined that. That's what happened in MY GAME. But, I'm asking you, if I'm playing in YOUR GAME, when YOU ARE DMing, and I want to know if my paladin knows a piece of information, what can I do at the table to determine that?
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See, I think this is largely the heart of the problem here. @iserith has molded the conversation around this idea that checks can only be made when there is significant risk of failure. But, that's not all checks can be used for. Checks, particularly things that aren't really actions like knowledge checks and Insight checks, are made when no one at the table can really answer a question. They are a neutral arbiter. I don't want to simply declare that I know this. I don't want the DM to tell me what I do or do not know. I want to use the mechanics of the game to determine that. I want that as a DM and as a player because the dice are entirely neutral.
Does your character know this information? Roll the dice and let's see shall we? And then we play from there. It's no different than "Can I hit the monster with my sword?" Well, roll the dice and let's see shall we? Or, "Can I parkour up this wall?" Again, let's roll the dice and see. The DM doesn't know the answer. The player doesn't know the answer. So, let's leave it up to the dice. The dice will tell us one way or the other.
This interpretation that ability checks can only be used for one thing, and one thing only - to determine the outcome of actions with significant risks in failure - is a very limited and limiting interpretation of how dice are used in the game.