sudden death rune

[Xerez]

This is a sudden death rune.. how do I change its damage? is it the -1.3, -30, -1.9, 0.. if it is, how much should I change to get like 50% dmg off.

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_DEATHDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_MORTAREA)
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, CONST_ANI_SUDDENDEATH)
setCombatFormula(combat, COMBAT_FORMULA_LEVELMAGIC, -1.3, -30, -1.8, 0)

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

 

[Saj]

setCombatFormula(combat, COMBAT_FORMULA_LEVELMAGIC, -1.3, -30, -1.8, 0)

change the-1.3 damage..