I'm wondering if there is an official way of dealing with "fish-in-a-barrel" type combat, and if so, what is it?
Some examples might include:
- Monster in a cage and the PCs want to stab/shoot it
- Monsters in a pit and the PCs want to shoot them from above
- Monster hanging helpless in a rope trap
Basically any situation where the PCs have a way of attacking the monsters without fear of retribution (or vice-versa).
Initiative or no?
My big question revolves around whether or not I would ask for initiative rolls. Would we go through initiative order and when it is the trapped player's turn they are just unable to do anything to fight back, but continue going through combat order until they are killed? Or would I avoid initiative and just let the PCs kill without actual combat?
This question has come from a scenario I'm planning in an upcoming one shot. The room is intended to be a test of resourcefulness, and it will have a large pit that needs to be crossed that contains poisonous snakes. But I was thinking of including access to a secret room that the PCs wouldn't discover unless they climb down into the pit and dispatch of the snakes.
And so I wonder: Are there any game mechanics in place that could prevent my PCs from just standing on the edge of the pit and shooting all the snakes with arrows?