Hi guys, I'm just getting into D&D with an inexperienced DM, and I think he's making a big mistake. During a battle, when a monster passes out of sight from the PCs (like moving around to the other side of a wall), my DM takes its token off the board. The idea is that if the characters can't see the monster, the players shouldn't be able to either. Does this make any sense? It seems to me there are rules governing how the players are affected when the monsters are outside our characters' sight.
If our DM is incorrect here, I am curious about how invisibility works. I've read In Targeting What You Can't See, they suggest that you're supposed to attack where you think the monster might be, which would suggest the players actually don't know where the monster is. For cases of invisibility, does the DM actually take the token off the board? I feel like there must be really obvious answers to these questions but I couldn't find any relevant threads. I hope you can help me clear them up.
If our DM is incorrect here, I am curious about how invisibility works. I've read In Targeting What You Can't See, they suggest that you're supposed to attack where you think the monster might be, which would suggest the players actually don't know where the monster is. For cases of invisibility, does the DM actually take the token off the board? I feel like there must be really obvious answers to these questions but I couldn't find any relevant threads. I hope you can help me clear them up.