Transmute rock to mud might do it. Be warned that the rather large collapse you'll need to trigger to block such a large cave might trigger further instability and collapses.
The amount of explosives you'd need to do this is tremendous.
hey everyone,
like the subject says i am looking for advice on causing a cave-in of a cave 60ft wide and 60ft tall.
there is a white dragon in this cave. The objective is to lure the dragon out, then set off a cave-in to stop the dragon from getting back in, so the party has time to gather up the treasure hoard and escape with a dimension door.
What would you recommend to cause this cave-in? some kind of explosives? how exactly would the rules work for an explosion like this?
any advice would be greatly appreciated. thanks!
Hello. I live near real life caves and I've gone spelunking. Most decent size caves have more than 1 entrance irl. If a dragon has lived there for multiple years, the dragon likely knows all the entrances.
Personally, I'm having trouble imagining the explosion required to cause a cave in big enough to block a 60 x 60 foot entrance. In terms of game rules, the spell is a cleric spell called stone shape at which you shape the stones on the roof of the cave to become no longer attached. Due to the size of the hole, (if I were the gm) I would require a high knowledge engineering check to go along with that spell to cause the correct size rocks and spaces from which the rocks come to cause a proper cave in.