Item Modifier 1.20.5

I was making a magic datapack, and when I decided to update the pack to 1.20.5 I was unable to figure out how to convert my original Item Modifier code to 1.20.5, I had previously made it so that if a player shifted and right clicked their wand at the same time it would switch to the next spell and cycle 1 - 9 but because I do not understand how to check the value of a custom data in the new Item Modifiers, this is as far as I got. 1.20.2 version { "function": "minecraft:set_nbt", "tag": "{spell:2b}", "conditions": [ { "condition": "minecraft:entity_properties", "entity": "this", "predicate": { "equipment": { "mainhand": { "items": [ "minecraft:warped_fungus_on_a_stick" ], "nbt": "{spell:1b}" } } } } ] } 1.20.5 version { "function": "minecraft:copy_custom_data", "source": "this", "ops": [ { "source": "spells:1b", "target": "spells:2b", "op": "replace" } ], "conditions": [ { "condition": "minecraft:match_tool", "predicate": { "components": { "minecraft:custom_data": {} } } } ] }, The rest of the sections are about the same.