Talk:Underground Treasure Chest 3/@comment-118.237.92.189-20151123074410/@comment-26501688-20151123084930

I only repair my swords when they have less than 20 hp before starting a floor.

In the middle of a floor, I just keep going until they're red.

If you have omamori, don't forget to equip the swords with those just in case to prevent breaking (though if you withdraw as soon as the sword is red, there should not be risk of breaking)