iserith
Magic Wordsmith
I prefer to focus on the bad outcomes that can be associated with "metagame thinking" more than the act itself. I can't police people's thoughts, nor do I trouble myself with asking why they decide to do a thing. That's not my role as DM. Rather, I remind the players not to allow "metagame thinking" to give them an expectation that is later proven to be wrong which can lead to the bad outcome of a dissatisfying play experience. It's like the DMG's example of "The DM wouldn't throw such a powerful monster at us..." That could lead to the death of the party.
Thus we have my Table Rule, which is posted for every game: '"Metagaming,' defined as using player skill or knowledge that a character might not necessarily have, is fine. I want you to draw upon your skill as a player to try and succeed... As well, assumptions can be risky so it's skillful play to verify your assumptions through in-game actions before making choices based on them. If you can justify your character's actions or knowledge by establishing appropriate fiction (e.g. Mialee knows about trolls' vulnerability to fire because of elvish tales she heard as a youngling), so much the better.
So, read the Monster Manual all you want. Even at the table if it's not distracting. But make decisions based on that information at your own risk.
Thus we have my Table Rule, which is posted for every game: '"Metagaming,' defined as using player skill or knowledge that a character might not necessarily have, is fine. I want you to draw upon your skill as a player to try and succeed... As well, assumptions can be risky so it's skillful play to verify your assumptions through in-game actions before making choices based on them. If you can justify your character's actions or knowledge by establishing appropriate fiction (e.g. Mialee knows about trolls' vulnerability to fire because of elvish tales she heard as a youngling), so much the better.
So, read the Monster Manual all you want. Even at the table if it's not distracting. But make decisions based on that information at your own risk.