Lua Spell help

[MadMOOK]

Can someone make this exori spell, like the spell below it?

local SPELL_LVL_STORAGE = 18479

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_HITAREA)
setCombatParam(combat, COMBAT_PARAM_USECHARGES, true)

local area = createCombatArea(AREA_SQUARE1X1)
setCombatArea(combat, area)

function onGetFormulaValues(cid, level, skill, attack, element, factor)
    local levelTotal, formula = level / 5, 0.0496
    local normal, elemental = -(skill * attack * formula + levelTotal), math.ceil((skill * element * formula + levelTotal))
    return normal/2, normal, -math.random(elemental/2, elemental)
end

setCombatCallback(combat, CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues")
function onCastSpell(cid, var)
    return doCombat(cid, combat, var)
end

Example

local SPELL_LVL_STORAGE = 18477

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TARGETCASTERORTOPMOST, true)
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_DEATHDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_MORTAREA)
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, CONST_ANI_SUDDENDEATH)

function onGetFormulaValues(cid, level, maglevel)   

local combat_formulas = {       
[0] = {min = (maglevel*3) +level/5 +150, max = (maglevel*4) +level/5 +260},       
[1] = {min = (maglevel*3) +level/5 +300, max = (maglevel*4) +level/5 +390},       
[2] = {min = (maglevel*3) +level/5 +390, max = (maglevel*4) +level/5 +450},       
[3] = {min = (maglevel*3) +level/5 +550, max = (maglevel*4) +level/5 +650}   
}   

local lvl = getPlayerStorageValue(cid, SPELL_LVL_STORAGE)   

lvl = lvl == -1 and 0 or lvl  
x = combat_formulas[lvl]  
return -x.min, -x.max
end

setCombatCallback(combat, CALLBACK_PARAM_LEVELMAGICVALUE, "onGetFormulaValues")

function onCastSpell(cid, var)   
return doCombat(cid, combat, var)
end