--メガリス・ノートラ・プルーラ
local s,id,o=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	--Cannot Special Summon
	local e0=Effect.CreateEffect(c)
	e0:SetType(EFFECT_TYPE_SINGLE)
	e0:SetProperty(EFFECT_FLAG_CANNOT_DISABLE+EFFECT_FLAG_UNCOPYABLE)
	e0:SetCode(EFFECT_SPSUMMON_CONDITION)
	e0:SetValue(aux.ritlimit)
	c:RegisterEffect(e0)
	--protection
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_HAND)
	e1:SetCountLimit(1,id)
	e1:SetCost(s.prcost)
	e1:SetOperation(s.prop)
	c:RegisterEffect(e1)
	--negate
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_NEGATE+CATEGORY_DESTROY+CATEGORY_RELEASE)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetCode(EVENT_CHAINING)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DAMAGE_CAL)
	e2:SetRange(LOCATION_MZONE)
	e2:SetCountLimit(1,id+o)
	e2:SetCondition(s.negcon)
	e2:SetTarget(s.negtg)
	e2:SetOperation(s.negop)
	c:RegisterEffect(e2)
end
function s.mat_filter(c)
	return c:IsAllTypes(TYPE_RITUAL+TYPE_MONSTER)
end
function s.prcost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return not e:GetHandler():IsPublic() end
end
function s.prop(e,tp,eg,ep,ev,re,r,rp)
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
	e1:SetCode(EVENT_CHAINING)
	e1:SetOperation(s.actop)
	e1:SetReset(RESET_PHASE+PHASE_END)
	Duel.RegisterEffect(e1,tp)
end
function s.actop(e,tp,eg,ep,ev,re,r,rp)
	local rc=re:GetHandler()
	if rc:IsAllTypes(TYPE_MONSTER+TYPE_RITUAL) and rc:IsSetCard(0x138) and re:IsActiveType(TYPE_MONSTER) and ep==tp then
		Duel.SetChainLimit(s.chainlm)
	end
end
function s.chainlm(e,rp,tp)
	return tp==rp
end
function s.negcon(e,tp,eg,ep,ev,re,r,rp)
	if ep==tp or e:GetHandler():IsStatus(STATUS_BATTLE_DESTROYED) then return false end
	if re:IsHasProperty(EFFECT_FLAG_CARD_TARGET) then
		local g=Duel.GetChainInfo(ev,CHAININFO_TARGET_CARDS)
		if g and g:IsExists(Card.IsLocation,1,nil,LOCATION_ONFIELD) then
			e:SetLabel(1)
		else
			e:SetLabel(0)
		end
	else
		e:SetLabel(0)
	end
	return Duel.IsChainNegatable(ev)
end
function s.negtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	Duel.SetOperationInfo(0,CATEGORY_NEGATE,eg,1,0,0)
	if re:GetHandler():IsDestructable() and re:GetHandler():IsRelateToEffect(re) then
		Duel.SetOperationInfo(0,CATEGORY_DESTROY,eg,1,0,0)
	end
end
function s.negop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.NegateActivation(ev) and re:GetHandler():IsRelateToChain(ev)
		and Duel.Destroy(eg,REASON_EFFECT)~=0
		and e:GetLabel()==1
		and Duel.IsExistingMatchingCard(Card.IsReleasableByEffect,tp,0,LOCATION_MZONE,1,nil)
		and Duel.SelectYesNo(tp,aux.Stringid(id,2)) then
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RELEASE)
		local g=Duel.SelectMatchingCard(tp,Card.IsReleasableByEffect,tp,0,LOCATION_MZONE,1,1,nil)
		local tc=g:GetFirst()
		if tc then
			Duel.BreakEffect()
			Duel.HintSelection(g)
			Duel.Release(g,REASON_EFFECT)
		end
	end
end