You can create a super good armor by get a diamond armor set and replace the diamond word with OP or just click the sign get items. PS: I lost the source file so there is not fix or upgrade! Sorry.
How to install
How to import this command into your world
First, you must give yourself a command block (If you are on a server, you must be 'OP'ed, and have access to /gamemode 1)
To get a command block, type
/give @p command_block in the chat.
Once you have a command block, right click it to open it's GUI.
Now, you must copy and paste the command from your browser into the game. Select the entire command from below, then right click and press 'copy'.
Next, go back to your minecraft world, and paste the command you just copied into the command block. There are a few different keys that may be used to do this, depending on your keyboard. The most common ones are 'CTRL + V', 'COMMAND + V', or 'STRG + V'
Finally, you can press done to exit the GUI, and execute the command block by powering it with a redstone block, a lever, or any thing you can get your grubby hands on. Just make sure you don't place it on top of the command block, or the machine will not be installed!
Show source commands
# This user did not upload the source commands!
/summon MinecartCommandBlock ~ ~1 ~ {Command:kill @e[type=MinecartCommandBlock,r=1],Riding:{id:MinecartCommandBlock,Command:setblock ~ ~-1 ~1 redstone_block,Riding:{id:MinecartCommandBlock,Command:setblock ~ ~ ~1 command_block 0 replace {Command:fill ~ ~-3 ~-1 ~ ~ ~ air},Riding:{id:MinecartCommandBlock,Command:tellraw @p ["",{"text":"The machine is fully working","color":"green"}],Riding:{id:MinecartCommandBlock,Command:scoreboard objectives add getitems dummy,Riding:{id:MinecartCommandBlock,Command:scoreboard objectives add sword dummy,Riding:{id:MinecartCommandBlock,Command:scoreboard objectives add armor dummy,Riding:{id:MinecartCommandBlock,Command:scoreboard objectives add boots dummy,Riding:{id:MinecartCommandBlock,Command:scoreboard objectives add leggings dummy,Riding:{id:MinecartCommandBlock,Command:scoreboard objectives add chestplate dummy,Riding:{id:MinecartCommandBlock,Command:scoreboard objectives add helmet dummy,Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~ ~-1 {Command:fill ~ ~ ~1 ~5 ~2 ~1 stone},Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~ ~1 {Command:fill ~ ~ ~-1 ~5 ~2 ~-1 redstone_block},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~ ~-1 {Command:scoreboard players set @a helmet 1 {Inventory:[{Slot:103b,id:"minecraft:diamond_helmet",tag:{display:{Name:"OP Helmet"}}}]}},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~ ~1 {Command:scoreboard players set @a chestplate 1 {Inventory:[{Slot:102b,id:"minecraft:diamond_chestplate",tag:{display:{Name:"OP Chestplate"}}}]}},Riding:{id:MinecartCommandBlock,Command:blockdata ~5 ~ ~-1 {Command:scoreboard players set @a leggings 1 {Inventory:[{Slot:101b,id:"minecraft:diamond_leggings",tag:{display:{Name:"OP Leggings"}}}]}},Riding:{id:MinecartCommandBlock,Command:blockdata ~5 ~ ~1 {Command:scoreboard players set @a boots 1 {Inventory:[{Slot:100b,id:"minecraft:diamond_boots",tag:{display:{Name:"OP Boots"}}}]}},Riding:{id:MinecartCommandBlock,Command:blockdata ~6 ~ ~-1 {Command:scoreboard players set @a[score_helmet=1,score_chestplate=1,score_leggings=1,score_boots=1,score_helmet_min=1,score_chestplate_min=1,score_leggings_min=1,score_boots_min=1] armor 1},Riding:{id:MinecartCommandBlock,Command:blockdata ~6 ~ ~1 {Command:effect @a[score_armor=1,score_armor_min=1] 11 3 255},Riding:{id:MinecartCommandBlock,Command:blockdata ~7 ~ ~-1 {Command:effect @a[score_armor=1,score_armor_min=1] 12 3 255},Riding:{id:MinecartCommandBlock,Command:blockdata ~7 ~ ~1 {Command:effect @a[score_armor=1,score_armor_min=1] 16 11 255},Riding:{id:MinecartCommandBlock,Command:blockdata ~8 ~ ~-1 {Command:effect @a[score_armor=1,score_armor_min=1] 13 3 255},Riding:{id:MinecartCommandBlock,Command:blockdata ~8 ~ ~1 {Command:effect @a[score_armor=1,score_armor_min=1] 23 3 255},Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~1 ~-1 {Command:scoreboard players set @a sword 1 {SelectedItem:{id:minecraft:diamond_sword,tag:{display:{Name:"OP Sword"}}}}},Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~1 ~1 {Command:effect @a[score_sword=1,score_sword_min=1] 5 3 255},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~1 ~-1 {Command:scoreboard players set @a helmet 0},Riding:{id:MinecartCommandBlock,Command:blockdata ~4 ~1 ~1 {Command:scoreboard players set @a chestplate 0},Riding:{id:MinecartCommandBlock,Command:blockdata ~5 ~1 ~-1 {Command:scoreboard players set @a leggings 0},Riding:{id:MinecartCommandBlock,Command:blockdata ~5 ~1 ~1 {Command:scoreboard players set @a boots 0},Riding:{id:MinecartCommandBlock,Command:blockdata ~6 ~1 ~-1 {Command:scoreboard players set @a sword 0},Riding:{id:MinecartCommandBlock,Command:blockdata ~6 ~1 ~1 {Command:replaceitem entity @p[score_getitems=1,score_getitems_min=1] slot.armor.head diamond_helmet 1 0 {display:{Name:"OP Helmet",Lore:["Best Armor Set Ever", "Literally Best"]},Unbreakable:1}},Riding:{id:MinecartCommandBlock,Command:blockdata ~7 ~1 ~-1 {Command:replaceitem entity @p[score_getitems=1,score_getitems_min=1] slot.armor.chest diamond_chestplate 1 0 {display:{Name:"OP Chestplate",Lore:["Best Armor Set Ever", "Literally Best"]},Unbreakable:1}},Riding:{id:MinecartCommandBlock,Command:blockdata ~7 ~1 ~1 {Command:replaceitem entity @p[score_getitems=1,score_getitems_min=1] slot.armor.legs diamond_leggings 1 0 {display:{Name:"OP Leggings",Lore:["Best Armor Set Ever", "Literally Best"]},Unbreakable:1}},Riding:{id:MinecartCommandBlock,Command:blockdata ~8 ~1 ~-1 {Command:replaceitem entity @p[score_getitems=1,score_getitems_min=1] slot.armor.feet diamond_boots 1 0 {display:{Name:"OP Boots",Lore:["Best Armor Set Ever", "Literally Best"]},Unbreakable:1}},Riding:{id:MinecartCommandBlock,Command:blockdata ~8 ~1 ~1 {Command:replaceitem entity @p[score_getitems=1,score_getitems_min=1] slot.hotbar.0 diamond_sword 1 0 {display:{Name:"OP Sword",Lore:["Best Armor Set Ever", "Literally Best"]},Unbreakable:1}},Riding:{id:MinecartCommandBlock,Command:blockdata ~3 ~2 ~-1 {Command:scoreboard players set @a getitems 0},Riding:{id:MinecartCommandBlock,Command:setblock ~3 ~ ~ redstone_block,Riding:{id:MinecartCommandBlock,Command:fill ~3 ~ ~-1 ~3 ~2 ~-1 command_block,Riding:{id:MinecartCommandBlock,Command:fill ~3 ~ ~-1 ~8 ~1 ~-1 command_block,Riding:{id:MinecartCommandBlock,Command:fill ~3 ~ ~1 ~8 ~2 ~1 command_block,Riding:{id:MinecartCommandBlock,Command:fill ~3 ~ ~1 ~8 ~1 ~1 command_block,Riding:{id:MinecartCommandBlock,Command:setblock ~1 ~ ~ wall_sign 4 replace {Text1:"{text:\\"Destroy\\",color:red,bold:true}",Text4:"{text:\"\",clickEvent:{action:\\"run_command\\",value:\\"fill ~ ~-3 ~-2 ~9 ~4 ~2 air\\"}}"},Riding:{id:MinecartCommandBlock,Command:setblock ~1 ~-1 ~ wall_sign 4 replace {Text1:"{text:\\"Get Items\\",color:green,clickEvent:{action:\\"run_command\\",value:\\"scoreboard players set @p getitems 1\\"}}"},Riding:{id:MinecartCommandBlock,Command:fill ~2 ~ ~-2 ~9 ~2 ~2 stained_glass 5 replace stained_hardened_clay 5,Riding:{id:MinecartCommandBlock,Command:fill ~2 ~-1 ~-2 ~9 ~3 ~2 stained_hardened_clay 5 hollow,Riding:{id:MinecartCommandBlock,Command:gamerule commandBlockOutput false,Riding:{id:MinecartCommandBlock,Riding:{id:FallingSand,Block:activator_rail,Time:1,Riding:{id:FallingSand,Block:redstone_block,Time:1,Riding:{id:FallingSand,Block:stone,Time:1}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}