How to store selected spells for each magic wand. (MCreator 2025.2, NeoForge 1.21.4)

Goal

I want to implement separate magic switching information for multiple different magic wands.

When you hold a magic wand and press the R key, the wand's spell will switch.

If there is only one magic wand, this can be achieved simply by having the NBT tag contain current_spell and max_spells (number of spells), but I don't know how to keep track of the switching status for multiple magic wands.

• Key Bindings: Pressing the R key calls the procedure.
• Magic List: Each magic wand has a different set of spells.

Example (Pseudocode)

fire_magic_wand:
Fire Wand = [“Fireball”, “Flame Pillar”, “Meteor”]
max_spells=3

ice_magic_wand:
Ice Wand = `[“Ice Bolt”, “Blizzard”]
max_spells=2

I am new to MCreator and not an English speaker, so the explanation may be unclear, but please bear with me.

Development environment

(MCreator 2025.2, NeoForge 1.21.4)