Arcanum Tweaks re-exposes the balance values that SpellCraft - Magic World hardcodes, so a pack maker or server owner can tune them from a config file — without ever modifying the base mod's jar.

What you can configure (config/arcanum_tweaks.json)
Skill-node bonuses — the exact bonus each of the 7 nodes gives for Mana Capacity, Mana Regen and Power.
Per-wand multipliers — the power and cast-time multiplier of every wand (Arcanewood, Thunderbird, Phoenix, Troll, Elder).
Cooldown formula — cooldownPerNode (reduction per cooldown node) and cooldownMin (the lowest the cooldown multiplier can reach). For example, 0.1 per node with a 0.0 floor lets 10 nodes reach 100% cooldown reduction.

Commands
Set a player's skill nodes directly (op level 2):
/arcanum mana_capacity <0-7>
/arcanum mana_regen <0-7>
/arcanum power <0-7>
/arcanum cooldown <0-10>

Live reload
Edit the config and run /arcanum reloadconfig — the new values (node bonuses, wand multipliers, cooldown) and the skill-menu tooltips update immediately, no restart needed.

How it works
Values are applied at load through reflection, and the cooldown formula and skill-menu UI are handled with lightweight mixins — the SpellCraft jar itself is left completely untouched, so it stays safe to update.

SpellCraft - Magic World tweaks addon