Custom effects on tools

[Tjmon_Hunchak 0]

Hello, does anyone know how to add a custom effect on tools (for example a pickaxe that has an effect of smelting, when iron ore is mined we get iron ingot but only when that custom pickaxe is used)? I've been looking everywhere for this but found nothing, if anyone knows please help.

[Draco18s 2406]

Either you can force enchantments onto the item, or you can use Global Loot Modifiers.