--R.B. Last Stand
local s,id,o=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--negate
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_DISABLE)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetCode(EVENT_CHAINING)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,id)
	e2:SetCondition(s.discon)
	e2:SetCost(aux.bfgcost)
	e2:SetTarget(s.distg)
	e2:SetOperation(s.disop)
	c:RegisterEffect(e2)
end
function s.spfilter(c,e,tp,cost)
	return c:IsSetCard(0x1cf) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
		and not Duel.IsExistingMatchingCard(aux.AND(Card.IsFaceup,Card.IsCode),tp,LOCATION_ONFIELD,0,1,nil,c:GetCode())
		and (c:IsLocation(LOCATION_DECK+LOCATION_GRAVE) and Duel.GetMZoneCount(tp)>0
			or c:IsLocation(LOCATION_EXTRA) and Duel.GetLocationCountFromEx(tp,tp,nil,c)>0)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_DECK+LOCATION_GRAVE+LOCATION_EXTRA,0,1,nil,e,tp,e:IsCostChecked()) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_DECK+LOCATION_GRAVE+LOCATION_EXTRA)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.spfilter),tp,LOCATION_DECK+LOCATION_GRAVE+LOCATION_EXTRA,0,1,1,nil,e,tp,false)
	if g:GetCount()>0 then
		Duel.SpecialSummon(g,0,tp,tp,false,false,POS_FACEUP)
	end
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET)
	e1:SetCode(EFFECT_CANNOT_SPECIAL_SUMMON)
	e1:SetReset(RESET_PHASE+PHASE_END)
	e1:SetTargetRange(1,0)
	e1:SetTarget(s.splimit)
	Duel.RegisterEffect(e1,tp)
end
function s.splimit(e,c)
	return c:IsLocation(LOCATION_EXTRA) and not (c:IsRace(RACE_MACHINE) and c:GetTextAttack()>=0 and c:GetTextAttack()<=1500)
end
function s.cfilter(c,tp)
	return c:IsSetCard(0x1cf) and c:IsLocation(LOCATION_MZONE) 
		and c:IsControler(tp) and c:IsFaceup()
end
function s.discon(e,tp,eg,ep,ev,re,r,rp)
	if not re:IsHasProperty(EFFECT_FLAG_CARD_TARGET) then return false end
	local g=Duel.GetChainInfo(ev,CHAININFO_TARGET_CARDS)
	if not g then return false end
	local c=e:GetHandler()
	return Duel.IsChainNegatable(ev)
		and g:IsExists(s.cfilter,1,nil,tp)
end
function s.distg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_DISABLE,eg,1,0,0)
end
function s.disop(e,tp,eg,ep,ev,re,r,rp)
	Duel.NegateEffect(ev)
end