Can someone fix this spell

[Cornwallis]

I need it to hit 3.6-3.7 everylevel (min,max)
I need it so, for every distance skill, it hits harder by 4-5 also min-max

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_DEATHDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, 31)
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, 32)

function onGetFormulaValues(cid, level, skill, attack, factor)
	return -(((skill + 10) / 1) + (level / 0.3)), -((skill +10) + (level / 0.3))
end

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

 

[Cornwallis]

I had a spell like this for 8.4 but it got deleted

 

[Cykotitan]

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_DEATHDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, 31)
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, 32)

function onGetFormulaValues(cid, level, skill, attack, factor)
	return -(level * 3.6 + skill * 4), -(level * 3.7 + skill * 5)
end

setCombatCallback(combat, CALLBACK_PARAM_SKILLVALUE, "onGetFormulaValues")

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