function CommonFun.calcBuff_8210(srcUser, targetUser, a, b, c, d, lv)
  if srcUser == nil or targetUser == nil then
    return 0
  end
  local skilllv_1 = srcUser:GetLernedSkillLevel(2073_RANGER:QUICK_ESCAPE_INVINCIBLE)
  local A = 0.2 * skilllv_1 + 1
  if srcUser:HasBuffID(90004624_MONSTER_KNIFE_MURAMASA_1_T5_:MAX_STACK_0) then
    A = A + 0.5
  end
  return A
end