{
  "criteria": {
    "holding_item": {
      "trigger": "minecraft:tick",
      "conditions": {
        "player": {
          "nbt": "{Tags:[\"flicker_strike_ready\"]}",
          "flags": {
            "is_sneaking": true
          }
        }
      }
    }
  },
  "rewards": {
    "function": "kiwi2:upgrades/classes/slayer/flicker_strike/flicker_strike_interaction"
  }
}