Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
You can Ritual Summon this card with any "Gishki" Ritual Spell Card. When this card declares an attack: Draw 1 card, and if you do, reveal it, then if it was a "Gishki" monster, look at 1 random card in your opponent's hand.
--イビリチュア・リヴァイアニマ
--Evigishki Levianima
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	--confirm
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_DRAW)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e1:SetCode(EVENT_ATTACK_ANNOUNCE)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
end
s.listed_series={SET_GISHKI}
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_DRAW,nil,0,tp,1)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local ct=Duel.Draw(tp,1,REASON_EFFECT)
	if ct==0 then return end
	local tc=Duel.GetOperatedGroup():GetFirst()
	Duel.ConfirmCards(1-tp,tc)
	Duel.ShuffleHand(tp)
	if tc:IsSetCard(SET_GISHKI) and tc:IsMonster() then
		Duel.BreakEffect()
		local g=Duel.GetFieldGroup(tp,0,LOCATION_HAND)
		if #g>0 then
			local sg=g:RandomSelect(tp,1)
			Duel.ConfirmCards(tp,sg)
		end
		Duel.ShuffleHand(1-tp)
	end
end