There are so many account bound items nowadays in the game from gathering tools to costumes that requires a more convenient way to transfer them from one character to another then the account bank
The account bound items can be stored in a similar way to “unlocked rewards” in achievement panel in hero window
All account bound items will go directly in there without filling up bank space and can be worn by all characters simultaneously. No need for storing them as physical items.
In this way, they will not be anymore in danger to be accidentally deleted