User blog comment:Denischernyavsky101/Surviving A Dungeon Guardian Hit!!!/@comment-24021074-20140617100440/@comment-24718884-20140617141330

And beetle Armor blocks 45% of the damage so since Dungeon Guardian hits like a truck for a 1000 damage, the beetle armor halves that into about 500 damage and the Lifeforce Potion is the secret to keeping you alive since if you lose 500 health, you still have about 100 health left