Formula
CommonFun.calcBuff_6400
function CommonFun.calcBuff_6400(srcUser, targetUser, a, b, c, d, lv)
if srcUser == nil or targetUser == nil then
return 0
end
local MaxHp = targetUser:GetProperty("MaxHp")
local skilllv = srcUser:GetLernedSkillLevel(a)
local A = MaxHp * skilllv * b
return A
end