Lua Critical Strike after click X item

[liqeen]

Well I've been struggling for 3 hours and finally come to conclusion that I can't do it xD
But lets get to the point, I'm trying to do an item that after use gives 50% critical strike damage (tfs implemented critical strike system) but with no success
I managed to create a spell that gives crit and it works but its harder with an action script.

local gainedCrit = 100
local condition = Condition(CONDITION_ATTRIBUTES)
local condition2 = Condition(CONDITION_PARAM_SKILL_CRITICAL_HIT_DAMAGE)


function onUse(player, item, fromPosition, target, toPosition, isHotkey)
       if item.itemid == 13529 then
       player:sendTextMessage(MESSAGE_EVENT_ADVANCE, "You received 100% critical strike damage.")
       condition:setParameter(CONDITION_PARAM_SKILL_CRITICAL_HIT_DAMAGE, gainedCrit)
       combat:setCondition(condition2, 100)
    end
end

^^ thats all I could create

I tried to do it with the spell example but I think thats not a good way XD, also with no success..
So my question is, how can I get player skill critical damage value and link it later on? Is it even possible to link it somehow without source edition?

Im using latest OTX