So earlier today when I was on factions I was attacking by MuffinStuffers. When we finally began to fight I realised that the damage that was being dealt to me was almost nil. It appears to occur when you claim a chunk/area in the End and an enemy hits you within the claimed area. It became very apparent was I was fighting scotty2k11. He had a Golden Apple (I'm not sure if it was God or not) and protection IV armour however I still was able to kill him with much worse armour (protection II, projectile protection IV, unbreaking III, feather falling IV) and with no potions. We had equal swords. It doesn't appear to be the case in the overworld nor does it occur in the Nether. Any ideas?