Modificando System Pet { Urgente }

Preciso bastante que me ajudem modificar esse system de pet por favor:

1- Quando o Pet  morrer ter um tempo de x segundos pra chama-lo novamente .

2- Quando chamar Pet  mostra um efeito .

Script

function onUse(cid, item, frompos, item2, topos)

local dolls = {
[11256] = {pet = "Rat"},
[11207] = {pet = "Demon"},
[5791] = {pet = "Dragon"},
}

local go = dolls[item.itemid]
local summon = getCreatureSummons(cid)
---------------------------------------------------
if not (getTilePzInfo(getCreaturePosition(cid))) then
if #summon >= 1 then
for _, pid in ipairs(summon) do
doRemoveCreature(pid)
doCreatureSay(cid, ""..go.pet..", Recuar!", TALKTYPE_ORANGE_1)
end
return true
end

if item.itemid == 5791 then
if getPlayerStorageValue(cid, 6666) == 1 then
doConvinceCreature(cid, doSummonCreature(go.pet, getCreaturePosition(cid)))
doCreatureSay(cid, ""..go.pet..", GO!", TALKTYPE_ORANGE_1)
else doPlayerSendTextMessage(cid, 19, "Voce precisa da quest para usar esse PET!")
doSendAnimatedText(getPlayerPosition(cid), "Failed!", 180)
end
end 

if item.itemid == 11256 then
if getPlayerStorageValue(cid, 4444) == 1 then
doConvinceCreature(cid, doSummonCreature(go.pet, getCreaturePosition(cid)))
doCreatureSay(cid, ""..go.pet..", GO!", TALKTYPE_ORANGE_1)
else doPlayerSendTextMessage(cid, 19, "Voce precisa da quest para usar esse PET!")
doSendAnimatedText(getPlayerPosition(cid), "Failed!", 180)
end
end

if item.itemid == 11207 then
if getPlayerStorageValue(cid, 4445) == 1 then
doConvinceCreature(cid, doSummonCreature(go.pet, getCreaturePosition(cid)))
doCreatureSay(cid, ""..go.pet..", GO!", TALKTYPE_ORANGE_1)
else 
doPlayerSendTextMessage(cid, 19, "Voce precisa fazer a quest para usar esse PET!")
doSendAnimatedText(getPlayerPosition(cid), "Failed!", 180)
end
end

else
doPlayerSendTextMessage(cid, 19, "Voce nao pode sumonar seu PET em Protect Zone!")
doSendAnimatedText(getPlayerPosition(cid), "Failed!", 180)
return true
end
end

Darei REP++