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Streamer of Fallen Night
Lvl: 10 Attack Magic CD: 1 sec Skill Delay: 1 sec SP: 180 Range: 7 Cast Time: 8

Nidhogg attacks one enemy, dealing M.ATK*4200% as Dark M.DMG to the target and enemies within 3m. A 20% chance to reduce final healing of all enemies by 50% for 5s. When Streamer of Fallen Night deals DMG, there's a 25% chance to turn the target's armor type to Holy for 5s. You can choose to disable this effect.

Lvl: 9 Attack Magic CD: 1 sec Skill Delay: 1 sec SP: 156 Range: 7 Cast Time: 7.2
• Nidhogg attacks one enemy, dealing M.ATK*3880% as Dark M.DMG to the target and enemies within 3m. A 20% chance to reduce final healing of all enemies by 47% for 5s. When Streamer of Fallen Night deals DMG, there's a 25% chance to turn the target's armor type to Holy for 5s. You can choose to disable this effect.
Lvl: 8 Attack Magic CD: 1 sec Skill Delay: 1 sec SP: 134 Range: 7 Cast Time: 6.4
• Nidhogg attacks one enemy, dealing M.ATK*3560% as Dark M.DMG to the target and enemies within 3m. A 20% chance to reduce final healing of all enemies by 44% for 5s. When Streamer of Fallen Night deals DMG, there's a 25% chance to turn the target's armor type to Holy for 5s. You can choose to disable this effect.
Lvl: 7 Attack Magic CD: 1 sec Skill Delay: 1 sec SP: 114 Range: 7 Cast Time: 5.6
• Nidhogg attacks one enemy, dealing M.ATK*3240% as Dark M.DMG to the target and enemies within 3m. A 20% chance to reduce final healing of all enemies by 41% for 5s. When Streamer of Fallen Night deals DMG, there's a 25% chance to turn the target's armor type to Holy for 5s. You can choose to disable this effect.
Lvl: 6 Attack Magic CD: 1 sec Skill Delay: 1 sec SP: 96 Range: 7 Cast Time: 4.8
• Nidhogg attacks one enemy, dealing M.ATK*2920% as Dark M.DMG to the target and enemies within 3m. A 20% chance to reduce final healing of all enemies by 38% for 5s. When Streamer of Fallen Night deals DMG, there's a 25% chance to turn the target's armor type to Holy for 5s. You can choose to disable this effect.
Lvl: 5 Attack Magic CD: 1 sec Skill Delay: 1 sec SP: 80 Range: 7 Cast Time: 4
• Nidhogg attacks one enemy, dealing M.ATK*2600% as Dark M.DMG to the target and enemies within 3m. A 20% chance to reduce final healing of all enemies by 35% for 5s. When Streamer of Fallen Night deals DMG, there's a 25% chance to turn the target's armor type to Holy for 5s. You can choose to disable this effect.
Lvl: 4 Attack Magic CD: 1 sec Skill Delay: 1 sec SP: 66 Range: 7 Cast Time: 3.2
• Nidhogg attacks one enemy, dealing M.ATK*2280% as Dark M.DMG to the target and enemies within 3m. A 20% chance to reduce final healing of all enemies by 32% for 5s. When Streamer of Fallen Night deals DMG, there's a 25% chance to turn the target's armor type to Holy for 5s. You can choose to disable this effect.
Lvl: 3 Attack Magic CD: 1 sec Skill Delay: 1 sec SP: 54 Range: 7 Cast Time: 2.4
• Nidhogg attacks one enemy, dealing M.ATK*1960% as Dark M.DMG to the target and enemies within 3m. A 20% chance to reduce final healing of all enemies by 29% for 5s. When Streamer of Fallen Night deals DMG, there's a 25% chance to turn the target's armor type to Holy for 5s. You can choose to disable this effect.
Lvl: 2 Attack Magic CD: 1 sec Skill Delay: 1 sec SP: 44 Range: 7 Cast Time: 1.6
• Nidhogg attacks one enemy, dealing M.ATK*1640% as Dark M.DMG to the target and enemies within 3m. A 20% chance to reduce final healing of all enemies by 26% for 5s. When Streamer of Fallen Night deals DMG, there's a 25% chance to turn the target's armor type to Holy for 5s. You can choose to disable this effect.
Lvl: 1 Attack Magic CD: 1 sec Skill Delay: 1 sec SP: 36 Range: 7 Cast Time: 0.8
• Nidhogg attacks one enemy, dealing M.ATK*1320% as Dark M.DMG to the target and enemies within 3m. A 20% chance to reduce final healing of all enemies by 23% for 5s. When Streamer of Fallen Night deals DMG, there's a 25% chance to turn the target's armor type to Holy for 5s. You can choose to disable this effect.

Formula

function CommonFun.calcDamage_61501(srcUser, targetUser, params, damageParam, logger)
  local Int = srcUser:GetProperty("Int")
  local Vit = srcUser:GetProperty("Vit")
  local MAtk = srcUser:GetProperty("MAtk")
  local MAtkPer = srcUser:GetProperty("MAtkPer")
  local MDamIncrease = CommonFun.calcMDamIncrease(srcUser, targetUser)
  local IgnoreMDef = srcUser:GetProperty("IgnoreMDef")
  if 1 <= IgnoreMDef then
    IgnoreMDef = 1
  end
  local MRefine = srcUser:GetProperty("MRefine")
  local RangeDam = srcUser:GetProperty("RangeDam")
  local srcAtkElement = CommonFun.GetUserAtkAttr(srcUser, targetUser, params, damageParam)
  local targetDefElement = targetUser:GetProperty("DefAttr")
  local elementparam2 = CommonFun.CalcElementParam2(srcUser, targetUser, params, damageParam, logger)
  local raceparam = CommonFun.CalcRaceParam(srcUser, targetUser, params, damageParam, logger)
  local raceparam2 = CommonFun.CalcRaceParam2(srcUser, targetUser, params, damageParam, logger)
  local bossparam = CommonFun.CalcBossParam(srcUser, targetUser, params, damageParam, logger)
  local bossparam2 = CommonFun.CalcBossParam2(srcUser, targetUser, params, damageParam, logger)
  local MDef2 = targetUser:GetProperty("MDef")
  local MDefPer2 = targetUser:GetProperty("MDefPer")
  local Vit2 = targetUser:GetProperty("Vit")
  local VitPer2 = targetUser:GetProperty("VitPer")
  local Int2 = targetUser:GetProperty("Int")
  local IntPer2 = targetUser:GetProperty("IntPer")
  local MDamReduc2 = CommonFun.calcMDamReDuc(srcUser, targetUser)
  local RefineMDamReduc = targetUser:GetProperty("RefineMDamReduc")
  local damChangePer = damageParam.damChangePer
  local BaseMAtk = Int + math.floor(Int * Int / 100)
  local MAtkFinal = ((MAtk - BaseMAtk) * (1 + MAtkPer) + BaseMAtk) * raceparam * bossparam * bossparam2
  local MDefReduc = CommonFun.CalcMDef(srcUser, targetUser)
  local skilllv = srcUser:GetLernedSkillLevel(2538_HIGH_PRIEST:MAGICAL_DRAGON_SCALE)
  local Sp = srcUser:GetProperty("Sp")
  local MaxSp = srcUser:GetProperty("MaxSp")
  local Ratio = 1
  if 0 < skilllv then
    Ratio = 1 + Sp / MaxSp * skilllv * 0.1
  end
  local skillID, skillLevel = CommonFun.UnmergeSkillID(params.skillIDAndLevel)
  if skillID == 2543_HIGH_PRIEST:STREAMER_OF_FALLEN_NIGHT then
    local skilllv_bd = srcUser:GetLernedSkillLevel(2532_HIGH_PRIEST:STREAMER_OF_FALLEN_NIGHT)
    damChangePer = skilllv_bd * 3.2 + 10
  end
  local GemValue = srcUser:GetGemValue(200101_EVERY_10_POINTS_OF_VIT_CAUSES_STREAMER_OF_FALLEN_NIGHT_DMG_PERCENTAGE)
  local GemDam = 1 + math.floor(Vit / 10) * GemValue / 100000
  local A = ((MAtkFinal * MDefReduc * (1 - MDamReduc2) + MRefine) * (1 - RefineMDamReduc) * damChangePer * (1 + MDamIncrease) * CommonFun.calcMagicElement(srcUser, targetUser, params, damageParam) * elementparam2 - Vit2 / 2 * (1 + VitPer2) - Int2 * (1 + IntPer2)) * (1 + RangeDam) * Ratio * GemDam
  if A <= 1 then
    return 1
  end
  return A
end

Enemy 7821

function CommonFun.calcBuff_7821(srcUser, targetUser, a, b, c, d, lv)
  if srcUser == nil or targetUser == nil then
    return 0
  end
  local skilllv_1 = srcUser:GetLernedSkillLevel(a)
  local A = skilllv_1 * b + c
  return A
end

Enemy

{
  "id": 136500,
  "BuffDesc": "Reduce the Healing effect",
  "BuffIcon": "skillbuff_2532001",
  "BuffName": "10783",
  "BuffRate": {
    "Odds": 20
  },
  "BuffType": {
    "isgain": 0,
    "isdisperse": 1
  },
  "IconType": 1,
  "BuffEffect": {
    "type": "HealReduce",
    "damRatio": {
      "a": 2532,
      "b": 0.03,
      "c": 0.2,
      "type": 7821
    },
    "source_skill": 2532
  },
  "BuffStateID": 136500
}

Enemy

{
  "id": 136501,
  "BuffDesc": "Reduce Atk and M.Atk",
  "BuffIcon": "skillbuff_2532001",
  "BuffName": "10784",
  "BuffRate": {
    "Odds": {
      "a": 2539,
      "b": 100,
      "c": 0,
      "type": 8
    }
  },
  "BuffType": {
    "isgain": 0,
    "isdisperse": 0
  },
  "IconType": 1,
  "BuffEffect": {
    "type": "AttrChange",
    "AtkPer": {
      "a": 2539,
      "b": -0.01,
      "c": 0,
      "type": 8
    },
    "MAtkPer": {
      "a": 2539,
      "b": -0.01,
      "c": 0,
      "type": 8
    },
    "MDefPer": {
      "a": 2539,
      "b": -0.01,
      "c": 0,
      "type": 8
    },
    "limit_layer": 5
  }
}

Enemy

{
  "id": 136502,
  "BuffDesc": "Armor type turns to Holy",
  "BuffIcon": "skillbuff_2532001",
  "BuffName": "堕夜流光概率转换铠甲",
  "BuffRate": {
    "Odds": {
      "a": 0,
      "b": 25,
      "c": 136503,
      "type": 5040
    }
  },
  "BuffType": {
    "isgain": 0,
    "isdisperse": 1
  },
  "IconType": 1,
  "BuffEffect": {
    "type": "BattleAttr",
    "DefAttr": 6,
    "atk_def_priority": 1
  }
}

Formula

{
  "CD": 1,
  "id": 2532010,
  "Buff": {
    "enemy": [
      136500,
      136501,
      136502
    ]
  },
  "Cost": 1,
  "Desc": [
    {
      "id": 2532000,
      "params": [
        4200,
        50
      ]
    }
  ],
  "Icon": "skill_2532001",
  "Camps": "Enemy",
  "Level": 10,
  "Logic": "SkillTargetPoint",
  "Damage": [
    {
      "type": 61501,
      "damChangePer": 42,
      "elementparam": 7
    }
  ],
  "DescId": "##42531605",
  "NameZh": "##1264721",
  "CastAct": "reading",
  "DamTime": {
    "type": 1,
    "value": 4
  },
  "DelayCD": 1,
  "Fire_EP": 3,
  "Pvp_buff": {
    "enemy": [
      136500,
      136501,
      136502
    ]
  },
  "RollType": 2,
  "AttackAct": [
    "use_skill"
  ],
  "Attack_EP": 3,
  "Lead_Type": {
    "CCT": 0,
    "FCT": 8,
    "type": 2
  },
  "SE_attack": "Skill/Skill_Hero_Nidhogg_Attack_01",
  "SkillCost": {
    "sp": 180
  },
  "SkillType": "Attack",
  "Target_EP": 0,
  "DamageType": 2,
  "Logic_Param": {
    "count": 1,
    "range": 3,
    "interval": 1,
    "no_select": 1,
    "isCountTrap": 1,
    "oneShotTrap": 1,
    "switchBuffs": [
      136503
    ],
    "trap_effect": "sfx_herondhg_slcj_atk_prf,LowBuff_B",
    "hideClientDamage": 1,
    "fieldarea_cannot_immune": 1
  },
  "Launch_Range": 7
}