Solved Solved !

[Zarn]

Thanks To Djivar And GangstaR i think he's name was REP !^_^

 

[Djivar]

3 knihgtspell

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_PHYSICALDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_DRAWBLOOD)

function getSpellDamage(cid, weaponSkill, weaponAttack, attackStrength )
    damage_min = (weaponSkill * weaponAttack * attackStrength / 30) * 0.45
    damage_max = (weaponSkill * weaponAttack * attackStrength / 30) * 0.7

    if(damage_max < damage_min) then
        local tmp = damage_max
	  damage_max = damage_min
	  damage_min = tmp
    end
    return -damage_min, -damage_max
end

setCombatCallback(combat, CALLBACK_PARAM_SKILLVALUE, "getSpellDamage")


local area = createCombatArea(AREA_CIRCLE3X3)
setCombatArea(combat, area)

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

 

[Zarn]

what to post in spell.xml?

 

[Djivar]

	<instant name="Berserk" words="exori" lvl="35" mana="115" prem="1" needweapon="1" exhaustion="2000" needlearn="0" script="attack/berserk.lua">
		<vocation name="Knight" />
		<vocation name="Elite Knight" />
	</instant>