Ancient Song
Lvl: 15 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 400

Choir Skill, increases Atk of all teammates within 5m by (The sum of the Phy. ATK of the two performers added together [8df936
]2%+150)& M.Atk by (The sum of the M.Atk of the two performers added together *2%+150), performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill. Skill Lv.is rounded down (The Skill Lv. of both Bard and Dancer's/2)must have an Music-type weapon equipped.

Lvl: 14 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 380
• Choir Skill, increases Atk of all teammates within 5m by (The sum of the Phy. ATK of the two performers added together [8df936 ]1.6%+150)& M.Atk by (The sum of the M.Atk of the two performers added together *1.6%+150), performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill. Skill Lv.is rounded down (The Skill Lv. of both Bard and Dancer's/2)must have an Music-type weapon equipped.
Lvl: 13 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 360
• Choir Skill, increases Atk of all teammates within 5m by (The sum of the Phy. ATK of the two performers added together [8df936 ]1.2%+150)& M.Atk by (The sum of the M.Atk of the two performers added together *1.2%+150), performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill. Skill Lv.is rounded down (The Skill Lv. of both Bard and Dancer's/2)must have an Music-type weapon equipped.
Lvl: 12 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 340
• Choir Skill, increases Atk of all teammates within 5m by (The sum of the Phy. ATK of the two performers added together [8df936 ]0.8%+150)& M.Atk by (The sum of the M.Atk of the two performers added together *0.8%+150), performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill. Skill Lv.is rounded down (The Skill Lv. of both Bard and Dancer's/2)must have an Music-type weapon equipped.
Lvl: 11 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 320
• Choir Skill, increases Atk of all teammates within 5m by (The sum of the Phy. ATK of the two performers added together [8df936 ]0.4%+150)& M.Atk by (The sum of the M.Atk of the two performers added together *0.4%+150), performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill. Skill Lv.is rounded down (The Skill Lv. of both Bard and Dancer's/2)must have an Music-type weapon equipped.
Lvl: 10 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 300
• Choir Skill, increases Atk of all teammates within 5m by 150 & M.ATk by 150, performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill,Skill Lv. is rounded down (The Skill Lv. of both Bard and Dancer's/2), must have an Music-type weapon equipped
Lvl: 9 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 280
• Choir Skill, increases Atk of all teammates within 5m by 135 & M.ATk by 135, performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill,Skill Lv. is rounded down (The Skill Lv. of both Bard and Dancer's/2), must have an Music-type weapon equipped
Lvl: 8 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 260
• Choir Skill, increases Atk of all teammates within 5m by 120 & M.ATk by 120, performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill,Skill Lv. is rounded down (The Skill Lv. of both Bard and Dancer's/2), must have an Music-type weapon equipped
Lvl: 7 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 240
• Choir Skill, increases Atk of all teammates within 5m by 105 & M.ATk by 105, performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill,Skill Lv. is rounded down (The Skill Lv. of both Bard and Dancer's/2), must have an Music-type weapon equipped
Lvl: 6 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 220
• Choir Skill, increases Atk of all teammates within 5m by 90 & M.ATk by 90, performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill,Skill Lv. is rounded down (The Skill Lv. of both Bard and Dancer's/2), must have an Music-type weapon equipped
Lvl: 5 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 200
• Choir Skill, increases Atk of all teammates within 5m by 75 & M.ATk by 75, performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill,Skill Lv. is rounded down (The Skill Lv. of both Bard and Dancer's/2), must have an Music-type weapon equipped
Lvl: 4 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 180
• Choir Skill, increases Atk of all teammates within 5m by 60 & M.ATk by 60, performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill,Skill Lv. is rounded down (The Skill Lv. of both Bard and Dancer's/2), must have an Music-type weapon equipped
Lvl: 3 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 160
• Choir Skill, increases Atk of all teammates within 5m by 45 & M.ATk by 45, performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill,Skill Lv. is rounded down (The Skill Lv. of both Bard and Dancer's/2), must have an Music-type weapon equipped
Lvl: 2 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 140
• Choir Skill, increases Atk of all teammates within 5m by 30 & M.ATk by 30, performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill,Skill Lv. is rounded down (The Skill Lv. of both Bard and Dancer's/2), must have an Music-type weapon equipped
Lvl: 1 Ensemble CD: 60 sec Skill Delay: 2 sec SP: 120
• Choir Skill, increases Atk of all teammates within 5m by 15 & M.ATk by 15, performance lasts 50 sec. Must be performed with other Dancers in the team who have also learned this skill,Skill Lv. is rounded down (The Skill Lv. of both Bard and Dancer's/2), must have an Music-type weapon equipped

Aesir

• Ancient Song - Enchantment [Ancient Song] increases M.Atk by an extra +2% (Bard Dancer’s Ensemble Skill, Aeisr Monument effects can stack)
• Ancient Song - Sharp Blade [Ancient Song] increases Atk by an extra +2% (Bard Dancer’s Ensemble Skill, Aeisr Monument effects can stack)
• Ancient Song - Mastery [Ancient Song] CD time -10 sec

Self

{
  "id": 118810,
  "BuffDesc": "Increase Atk & M.Atk",
  "BuffIcon": "skillbuff_1394001",
  "BuffName": "Ancient Song",
  "BuffRate": {
    "Odds": 100
  },
  "BuffType": {
    "isgain": 1,
    "isdisperse": 1
  },
  "IconType": 1,
  "BuffEffect": {
    "Atk": {
      "type": 3860
    },
    "MAtk": {
      "type": 3870
    },
    "type": "AttrChange",
    "calc_once": 1,
    "DamIncrease": {
      "a": 21020110,
      "b": 0.05,
      "type": 5310
    },
    "MDamIncrease": {
      "a": 21120090,
      "b": 0.05,
      "type": 5310
    }
  },
  "BuffStateID": 118810
}

Team

{
  "id": 118810,
  "BuffDesc": "Increase Atk & M.Atk",
  "BuffIcon": "skillbuff_1394001",
  "BuffName": "Ancient Song",
  "BuffRate": {
    "Odds": 100
  },
  "BuffType": {
    "isgain": 1,
    "isdisperse": 1
  },
  "IconType": 1,
  "BuffEffect": {
    "Atk": {
      "type": 3860
    },
    "MAtk": {
      "type": 3870
    },
    "type": "AttrChange",
    "calc_once": 1,
    "DamIncrease": {
      "a": 21020110,
      "b": 0.05,
      "type": 5310
    },
    "MDamIncrease": {
      "a": 21120090,
      "b": 0.05,
      "type": 5310
    }
  },
  "BuffStateID": 118810
}

Formula

{
  "CD": 60,
  "id": 1443015,
  "Buff": {
    "self": [
      118810
    ],
    "team": [
      118810
    ]
  },
  "Cost": 1,
  "Desc": [
    {
      "id": 1443001,
      "params": [
        2,
        2
      ]
    }
  ],
  "Icon": "skill_1394001",
  "Camps": "Friend",
  "Level": 15,
  "Logic": "SkillSelfRange",
  "DescId": "##170656",
  "EndAct": "use_magic",
  "NameZh": "##158732",
  "DelayCD": 2,
  "Fire_EP": 3,
  "Pvp_buff": {
    "self": [
      118810
    ],
    "team": [
      118810
    ],
    "friend": [
      118810
    ]
  },
  "AttackAct": [
    "use_magic"
  ],
  "Attack_EP": 0,
  "SE_attack": "Skill/skill_magic_ancinetsun_attack",
  "SkillCost": {
    "sp": 400
  },
  "SkillType": "Ensemble",
  "Target_EP": 3,
  "Logic_Param": {
    "count": 3,
    "range": 5,
    "interval": 1,
    "no_select": 1,
    "range_num": 15,
    "SkillStatus": {
      "time": 3
    },
    "isCountTrap": 1,
    "trap_effect": "AncientSun_buff1,LowRange_B",
    "weapon_type": [
      260,
      270
    ],
    "partner_skillid": 1394,
    "fieldarea_cannot_immune": 1
  },
  "Launch_Range": 0,
  "PreCondition": {
    "ProType": 9
  },
  "AutoCondition": [
    {
      "time": 63,
      "type": 1,
      "no_target": 1
    },
    {
      "type": 7,
      "no_target": 1
    },
    {
      "type": 8,
      "no_target": 1
    }
  ]
}