If applicable, try to put at least 1 data tag in your command(s)
I'll start with a couple commands:
/give @p diamond_chestplate 1 0 {Unbreakable:1,ench:[{id:0,lvl:32767},{id:7,lvl:32767}],AttributeModifiers:[{AttributeName:generic.knockbackResistance,Name:KBR,Amount:1,Operation:0,UUIDLeast:1,UUIDMost:1}],display:{Lore:["Chestplate of Immortality"]}}
/give @p potion 1 16396 {CustomPotionEffects:[{Id:6,Amplifier:29,Duration:1},{Id:7,Amplifier:29,Duration:1}]}
I'll start with a couple commands:
/give @p diamond_chestplate 1 0 {Unbreakable:1,ench:[{id:0,lvl:32767},{id:7,lvl:32767}],AttributeModifiers:[{AttributeName:generic.knockbackResistance,Name:KBR,Amount:1,Operation:0,UUIDLeast:1,UUIDMost:1}],display:{Lore:["Chestplate of Immortality"]}}
/give @p potion 1 16396 {CustomPotionEffects:[{Id:6,Amplifier:29,Duration:1},{Id:7,Amplifier:29,Duration:1}]}