wynnbuilder-idk/py_script/sets/_Horse.json

{
  "items": [
    "Horse Mask",
    "Horse Hoof"
  ],
  "bonuses": [
    {},
    {
      "mdPct": 11,
      "xpb": 10,
      "spd": 20,
      "aDamPct": 15,
      "eDamPct": 15
    }
  ]
}