I have tried and failed to summon a mob with a fixed durability item. Every time the entity is killed, it drops the item with a randomized durability, because such is the way. But is there a way to over-ride this and give the item a fixed durability on drop? I have tried:
/summon zombie ~ ~1 ~ {HandItems:[{Count:1,id:stone_sword,tag:{Damage:1,display:{Name:"\"Blade\""}}},{}],HandDropChances:[1.0f,0.0f]}
The test being the "Damage:1" bit.