Freeing Others from Webs During Combat


My players found themselves in a situation where they were mostly webbed by giant spiders. One person was free and asked to cut out one of the restrained players.

Looking up the rules, I don’t see anything about freeing restrained party members. When they went to free their comrade, they asked if they should roll for it. I said no. They were cutting out their party member which expended their action versus using an ability. I thought the action expenditure was enough.

We went with it during the session, but after the fact, I can’t find any rules for freeing trapped party members. Does anyone have clarification on this?