Items that disappear when you death pile

The Dramen staff is kept on death, so the quest where you unlock the Lunar staff will convert that keepable item into one that disappears. 

This item is needed with death piling involved in the Devious Minds quest. The way to do the quest is to death pile with the mithril 2H sword and bow string (do not death pile after making the bow-sword). After you craft the bow-sword, you will go to Entrana 2 times in the quest. Also note that the colossal pouch is not consumed by doing the quest (contrast from the large pouch which is lost). However, if you die with the colossal pouch when it's combined with the orb during the quest, I am not sure if it would be lost (it didn't happen to me luckily).