--Oniritron Assimilator of Shadows
local s,id=GetID()
function s.initial_effect(c)
	--xyz summon
	aux.AddXyzProcedure(c,nil,1,3)
	c:EnableReviveLimit()
	--Gains 500 ATK/DEF for each material attached to it.
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_UPDATE_ATTACK)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetValue(s.atkval)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EFFECT_UPDATE_DEFENSE)
	c:RegisterEffect(e2)
	--During your opponent's turn (Quick Effect): You can target 1 Set card your opponent controls; attach it to this card as material.
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,0))
	e3:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e3:SetType(EFFECT_TYPE_QUICK_O)
	e3:SetCode(EVENT_FREE_CHAIN)
	e3:SetRange(LOCATION_MZONE)
	e3:SetHintTiming(0,TIMING_MAIN_END+TIMINGS_CHECK_MONSTER+TIMING_END_PHASE)
	e3:SetCountLimit(1,{id,0})
	e3:SetCondition(s.condition)
	e3:SetTarget(s.target)
	e3:SetOperation(s.operation)
	c:RegisterEffect(e3)
	--You can detach 1 material from this card; Set 1 "Oniritron" Trap directly from your Deck, except an "Oniritron Device" card.
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_IGNITION)
	e4:SetRange(LOCATION_MZONE)
	e4:SetCountLimit(1,{id,1})
	e4:SetCost(s.setcost)
	e4:SetTarget(s.settg)
	e4:SetOperation(s.setop)
	c:RegisterEffect(e4)
end
function s.atkval(e,c)
	return c:GetOverlayCount()*500
end
function s.filter(c)
	return c:IsAbleToChangeControler()
		and not c:IsType(TYPE_TOKEN) and c:IsFacedown()
end
function s.condition(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetTurnPlayer()~=tp
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_ONFIELD) and chkc:IsControler(1-tp) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,0,LOCATION_ONFIELD,1,nil) and e:GetHandler():IsType(TYPE_XYZ) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TARGET)
	Duel.SelectTarget(tp,s.filter,tp,0,LOCATION_ONFIELD,1,1,nil)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local tc=Duel.GetFirstTarget()
	if c:IsRelateToEffect(e) and tc:IsRelateToEffect(e) and not tc:IsImmuneToEffect(e) then
		local og=tc:GetOverlayGroup()
		if og:GetCount()>0 then
			Duel.SendtoGrave(og,REASON_RULE)
		end
		Duel.Overlay(c,Group.FromCards(tc))
	end
end
function s.setfilter(c)
	return c:IsSSetable() and c:IsSetCard(0x721) and not c:IsSetCard(0x1721) and c:IsType(TYPE_TRAP)
end
function s.setcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return e:GetHandler():CheckRemoveOverlayCard(tp,1,REASON_COST) end
	e:GetHandler():RemoveOverlayCard(tp,1,1,REASON_COST)
end
function s.settg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.setfilter,tp,LOCATION_DECK,0,1,nil) end
end
function s.setop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_TOGRAVE)
	local g=Duel.SelectMatchingCard(tp,s.setfilter,tp,LOCATION_DECK,0,1,1,nil)
	if #g>0 then
		Duel.SSet(tp,g)
	end
end