For unknown reasons, Staves added by the LNE Wizards Add-On & LNE Paladins & Priests Add-On mods does not have the default spell assigned to the RPG Series Wizards's staves and Paladins & Priests's holy staves, those being 'Arcane Blast', 'Pyroblast', 'Frost Bolt' and 'Holy Shock'. This makes upgrading the staves into those added by the former mods a scam, so I made a datapack that changes the default components of these staves, completely unaffected by enchantments, tiers/modifiers or power levels added by the Dungeon Difficulty mod.

Before:

!no default spell

After:

!allows casting 'Arcane Blast' as intended