armor-statues/data/armor_statues/predicates/offhand_potion.json

{
  "condition": "minecraft:alternative",
  "terms": [
    {
      "condition": "minecraft:entity_properties",
      "entity": "this",
      "predicate": {
        "equipment": {
          "offhand": {
            "tag": "armor_statues:potions",
	        "potion": "minecraft:invisibility"
          }
        }
      }
    },
	{
      "condition": "minecraft:entity_properties",
      "entity": "this",
      "predicate": {
        "equipment": {
          "offhand": {
            "tag": "armor_statues:potions",
	        "potion": "minecraft:long_invisibility"
          }
        }
      }
    }
    
  ]
}