local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_HITAREA)
setCombatParam(combat, COMBAT_PARAM_USECHARGES, 1)

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

function onGetFormulaValues(cid, skill, attack, factor)
	local skillTotal, levelTotal = skill * attack, getPlayerLevel(cid) / 5
	return -(((skillTotal * 0.06) + 13) + (levelTotal)), -(((skillTotal * 0.11) + 27) + (levelTotal))
end

setCombatCallback(combat, CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues")

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