Extended Rope Trick is a 3rd level spell.
Kmart Kommando-
Depends on how you define large party. Some say a large party is 6 players, while other consider large to be more than 6. But if the party is large enough to tap out the cleric the party should be contributing to a pearl of power 1 pool. 1k for 15 hp per day and additional utility if healing is not needed goes a long way as well. If party size really isn't the issue but damage being taken by the party then the party should build sturdier characters.
Kmart Kommando-
Depends on how you define large party. Some say a large party is 6 players, while other consider large to be more than 6. But if the party is large enough to tap out the cleric the party should be contributing to a pearl of power 1 pool. 1k for 15 hp per day and additional utility if healing is not needed goes a long way as well. If party size really isn't the issue but damage being taken by the party then the party should build sturdier characters.