--NT8000－SIRIUS
local s,id,o=GetID()
function s.initial_effect(c)
	--indes
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCode(EFFECT_INDESTRUCTABLE_BATTLE)
	e1:SetCondition(s.indcon)
	e1:SetValue(1)
	c:RegisterEffect(e1)
	--destory
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_DESTROY)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCode(EVENT_FREE_CHAIN)
	e2:SetCountLimit(1,id)
	e2:SetHintTiming(0,TIMING_END_PHASE)
	e2:SetCondition(s.descon)
	e2:SetTarget(s.destg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
	--spsummon
	local e3=Effect.CreateEffect(c)
	e3:SetDescription(aux.Stringid(id,2))
	e3:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e3:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e3:SetProperty(EFFECT_FLAG_DELAY)
	e3:SetCode(EVENT_TO_GRAVE)
	e3:SetCountLimit(1,id+o)
	e3:SetCondition(s.spcon)
	e3:SetTarget(s.sptg)
	e3:SetOperation(s.spop)
	c:RegisterEffect(e3)
	Duel.AddCustomActivityCounter(id,ACTIVITY_CHAIN,s.chainfilter)
end
function s.chainfilter(re,tp,cid)
	return not (re:IsActiveType(TYPE_MONSTER) and re:GetHandler():IsAllTypes(TYPE_LINK+TYPE_MONSTER))
end
function s.indcon(e)
	return e:GetHandler():IsLinkState()
end
function s.descon(e,tp,eg,ep,ev,re,r,rp)
	return Duel.GetCustomActivityCount(id,tp,ACTIVITY_CHAIN)>0
		or Duel.GetCustomActivityCount(id,1-tp,ACTIVITY_CHAIN)>0
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return false end
	if chk==0 then return Duel.IsExistingTarget(Card.IsFaceup,tp,LOCATION_ONFIELD,0,1,nil) and Duel.IsExistingTarget(Card.IsFaceup,tp,0,LOCATION_ONFIELD,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g1=Duel.SelectTarget(tp,Card.IsFaceup,tp,LOCATION_ONFIELD,0,1,1,nil)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g2=Duel.SelectTarget(tp,Card.IsFaceup,tp,0,LOCATION_ONFIELD,1,1,nil)
	g1:Merge(g2)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,g1,2,0,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local g=Duel.GetTargetsRelateToChain()
	if g:GetCount()==2 then
		Duel.Destroy(g,REASON_EFFECT)
	end
end
function s.spfilter(c)
	return c:IsAllTypes(TYPE_LINK+TYPE_MONSTER) and c:IsAttribute(ATTRIBUTE_DARK) and c:IsFaceup()
end
function s.spcon(e,tp,eg,ep,ev,re,r,rp)
	return not e:GetHandler():IsPreviousLocation(LOCATION_ONFIELD)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_MZONE,0,1,nil)
		and Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and c:IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,c,1,0,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) and aux.NecroValleyFilter()(c)
		and Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)>0 then
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_LEAVE_FIELD_REDIRECT)
		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
		e1:SetReset(RESET_EVENT+RESETS_REDIRECT)
		e1:SetValue(LOCATION_REMOVED)
		c:RegisterEffect(e1,true)
	end
end
