npc_abilities_custom.lua

  "inspire_lua"{
    "BaseClass"                 "ability_datadriven"
    "MaxLevel"                  "4"

    "Abilitybehavior"           "DOTA_ABILITY_BEHAVIOR_NO_TARGET"
    "AbilityUnitTargetType"     "DOTA_UNIT_TARGET_BASIC | DOTA_UNIT_TARGET_HERO"

    "AbilityCooldown"           "0.75"
    "AbilityManaCost"           "25"

    "AbilityCastPoint"          "0.15"
    "AbilitycastRange"          "900"

    "AbilitySpecial"
    {
        "01"
        {
            "var_type"          "FIELD_INTEGER"
            "radius"            "900"
        }
        "02"
        {
            "var_type"          "FIELD_FLOAT"
            "buff_duration"     "3.0 4.0 5.0"
        }
        "03"
        {
            "var_type"          "FIELD_INTEGER"
            "str_increase"      "25 50 75 100"
        }
    }

    "OnSpellStart"
    {
        "ActOnTargets"
        {
            "Target"
            {
                "Center"    "CASTER"
                "Radius"    "%radius"
                "Teams"     "DOTA_UNIT_TARGET_TEAM_FRIENDLY"
                "Types"     "DOTA_UNIT_TARGET_HERO | DOTA_UNIT_TARGET_BASIC"
            }

            "Action"
            {
                "ApplyModifier"
                {
                    "ModifierName"  "modifier_inspire_str_datadriven"
                    "Target"        "TARGET"
                    "Duration"      "0.1"
                }
            }
        }
    }

    "Modifiers"
    {
        // Stack Modifier
        "modifier_inspire_buff_datadriven"
        {
          "IsBuff"          "1"
          "Duration"        "%buff_duration"

          "Properties"
          {
              "MODIFIER_PROPERTY_STATS_STRENGTH_BONUS" "%str_increase"
          }
        }

        "modifier_inspire_str_datadriven"
        {
          "Duration"        "%buff_duration"
          "IsHidden"        "1"

          "Attributes"       "MODIFIER_ATTRIBUTE_MULTIPLE"

          "OnCreated"
          {
              "RunScript"
              {
                  "ScriptFile"      "heroes/hero_minstrel/inspire_lua.lua"
                  "Function"        "ApplyInspire"
                  "stack_modifier"  "modifier_inspire_buff_datadriven"
              }
          }

          "OnDestroy"
          {
              "RunScript"
              {
                  "ScriptFile"      "heroes/hero_minstrel/inspire_lua.lua"
                  "Function"        "RemoveInspire"
                  "stack_modifier"  "modifier_inspire_buff_datadriven"
              }
          }
        }
    }
  }
}