The Arcane Dictionary (iska_utils:arcane_dictionary) is a cursed Curio (belt or charm slot) that stores random arcane traits (levels I–V). Players reroll traits with XP; active traits consume entropy charges absorbed automatically from inventory while exactly one dictionary is equipped in Curios.

Pack authors configure which traits appear in the pool, their weights, luck bias, entropy consume, and reroll catalysts. How each trait behaves in gameplay is implemented in the mod — datapacks cannot add new trait logic without a code update.

Important: An enchant entry is ignored at reroll time unless the mod registers an effect for that ID. Unknown IDs are skipped (logged at consume lookup).

data/<namespace>/load/<any_subdirectory>/

Every JSON file anywhere under data/<namespace>/load/ whose root "type" is iska_utils:arcane_dictionary is loaded. You can split pools across folders (e.g. load/iska_utils_arcane_dictionary/, load/my_pack_arcane/, or flat load/traits.json).

Reload: /reload or /iska_lib_dev reload (Arcane Dictionary pool is included).

Merge behaviour: All matching files from all namespaces and subfolders are merged; every entries[] array is appended into one runtime pool (same pattern as Factory / Ancient Tablet — not last-wins per trait ID).

There is no config key to restrict the load folder — all subdirectories are scanned automatically.

Gates: each entry may declare mods and/or stages (same syntax as Suspicious Delivery and Command Items). Only AND / OR logic — no DEF_AND / DEF_OR. Entries are always loaded; gates are checked at reroll, runtime, and JEI (see Mod and stage gates).

Root:

{
  "type": "iska_utils:arcane_dictionary",
  "entries": [
    {
      "weight": 40,
      "luck": 15,
      "enchant": "iska_utils:lucky",
      "ent_cha": 0,
      "only_curio": false,
      "cat": ["#c:gems/lapis"],
      "color": "55FF55"
    }
  ]
}

Requires Iskandert's Utilities 3.5.0.0.0 or newer.

Each pool entry can require mods and/or stages. Syntax matches Suspicious Delivery entries (not Command Item if blocks — no deferred DEF_* logic; if present in JSON, logged as warning and treated as AND).

{
  "weight": 20,
  "enchant": "iska_utils:entropy_blade",
  "mods": [{ "mod": "create", "is": true }],
  "mods_logic": "AND",
  "stages": [
    { "stage_type": "player", "stage": "chapter_2", "is": true },
    { "stage_type": "world", "stage": "boss_defeated", "is": true }
  ],
  "stages_logic": "OR"
}

Load vs runtime: entries are not stripped at load when a mod is missing. The full pool is merged at /reload; gates filter per player when rolling and when applying effects.

Both gates must pass for eligibility: eligible = mods_ok AND stages_ok (each side uses its own *_logic).

"cat": ["minecraft:golden_apple:10"]
"cat": ["#c:gems/lapis:12"]
"cat": ["#c:ender_pearls:4", "minecraft:phantom_membrane:8"]

Tags use the same #id syntax as elsewhere in Iska Utils datapacks.

These enchant IDs have gameplay code in the mod. Datapacks may re-weight, recatalyst, or change consume; cannot redefine mechanics in JSON alone.

Removing an entry from the datapack removes it from rolls. Adding a new enchant ID requires a mod release that registers that effect.

Not configurable via datapack:

Category jei.iska_utils.arcane_dictionary (catalyst item: Arcane Dictionary). Lists each pool trait with effect description, weight/luck meta, optional requires mod / requires stage lines, and reroll catalyst slots (tags cycle all tag members). Requires JEI + mod 3.5.0.0.0+.

• Traits blocked by a missing mod are omitted from the category.
• Chance and catalyst reroll % are computed against the obtainable pool (mods + stages when readable), not the raw datapack total.
• Stage-only gates do not hide entries; chance may read 0% until the player qualifies.

{
  "type": "iska_utils:arcane_dictionary",
  "entries": [
    {
      "weight": 50,
      "luck": 10,
      "enchant": "iska_utils:lucky",
      "ent_cha": 0,
      "cat": ["#c:gems/lapis:12"]
    },
    {
      "weight": 50,
      "luck": -10,
      "enchant": "iska_utils:unlucky",
      "ent_cha": 0,
      "cat": ["minecraft:poisonous_potato:12"]
    },
    {
      "weight": 20,
      "luck": 0,
      "enchant": "iska_utils:stone_skin",
      "ent_cha": 8
    },
    {
      "weight": 15,
      "luck": 5,
      "enchant": "iska_utils:entropy_blade",
      "ent_cha": 4,
      "mods": [{ "mod": "create", "is": true }],
      "stages": [{ "stage_type": "player", "stage": "midgame", "is": true }]
    }
  ]
}

Place under data/mypack/load/iska_utils_arcane_dictionary/traits.json (or any load/ subfolder). Reload. Entries merge with other packs’ files.