Modified vanilla trial chamber loot tables.
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I made this for my own use since I found the trial chamber loot very underwhelming, but figured I might as well share it here :) I basically removed almost all loot items that I consider useless (tuff, planks, stone tools), and added some more rewarding loot like diamond tools/armor, as well as adjusting the chances on some of the existing loot.

Changes

The following trial chamber loot tables are modified.

Vaults and ominous vaults

  • Guaranteed unique reward (removed chance of not rolling the unique reward loot table)
  • Probability and quantity of diamonds doubled
  • Emeralds replaced by emerald blocks, probability halved
  • Iron axes and iron chestplates replaced by diamond swords and diamond leggings
  • Enchanted books can contain mending
  • Honey bottles replaced by potions of regeneration

Spawners and ominous spawners

  • Replaced baked potatoes by golden carrots
  • Replaced steaks by golden apples
  • Removed bread and cooked chicken

Entrance chests

  • Honeycomb is replaced by emeralds
  • Sticks and wooden axes are replaced by potions of swiftness and strength

Supply chests

  • Tuff replaced by scaffolding
  • Acacia planks replaced by a shield
  • Stone pickaxe replaced by an enchanted iron pickaxe

Corridor barrels

  • Removed honeycomb, bamboo planks, and stone axe
  • Stone pickaxe replaced by an enchanted iron pickaxe