--Overlay-Knight Rescuer
function c249001204.initial_effect(c)
	--revive
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(2)
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_SUMMON_SUCCESS)
	e1:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY)
	e1:SetCountLimit(1,2490012041)
	e1:SetTarget(c249001204.target)
	e1:SetOperation(c249001204.operation)
	c:RegisterEffect(e1)
	local e2=e1:Clone()
	e2:SetCode(EVENT_FLIP_SUMMON_SUCCESS)
	c:RegisterEffect(e2)
	local e3=e1:Clone()
	e3:SetCode(EVENT_SPSUMMON_SUCCESS)
	c:RegisterEffect(e3)
	--special summon self
	local e4=Effect.CreateEffect(c)
	e4:SetDescription(aux.Stringid(26889158,0))
	e4:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e4:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e4:SetProperty(EFFECT_FLAG_DELAY)
	e4:SetCode(EVENT_TO_GRAVE)
	e4:SetRange(LOCATION_HAND)
	e4:SetCountLimit(1,2490012042)
	e4:SetCondition(c249001204.spcon)
	e4:SetTarget(c249001204.sptg)
	e4:SetOperation(c249001204.spop)
	c:RegisterEffect(e4)
	--to grave
	local e5=Effect.CreateEffect(c)
	e5:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_CONTINUOUS)
	e5:SetCode(EVENT_TO_GRAVE)
	e5:SetOperation(c249001204.regop)
	c:RegisterEffect(e5)
end
function c249001204.filter(c,e,tp)
	return c:IsType(TYPE_XYZ) and c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEUP_DEFENSE)
end
function c249001204.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and c249001204.filter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and
		Duel.IsExistingTarget(c249001204.filter,tp,LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,c249001204.filter,tp,LOCATION_GRAVE,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,0,0)
end
function c249001204.operation(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		if tc:IsSetCard(0x231) or (Duel.GetFieldGroupCount(tp,LOCATION_HAND,0)>0 and Duel.SelectYesNo(tp,501)) then 
			Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP_DEFENSE)
			local tc2=Duel.GetFieldCard(tp,LOCATION_GRAVE,Duel.GetFieldGroupCount(tp,LOCATION_GRAVE,0)-1)
			if tc2 then
				Duel.Overlay(tc,tc2)
			end
			if not tc:IsSetCard(0x231) then Duel.DiscardHand(tp,aux.TRUE,1,1,REASON_EFFECT+REASON_DISCARD) end
		else
			if Duel.SpecialSummonStep(tc,0,tp,tp,false,false,POS_FACEUP_DEFENSE) then
				local c=e:GetHandler()
				local e1=Effect.CreateEffect(c)
				e1:SetType(EFFECT_TYPE_SINGLE)
				e1:SetCode(EFFECT_DISABLE)
				e1:SetReset(RESET_EVENT+RESETS_STANDARD+RESET_PHASE+PHASE_END)
				tc:RegisterEffect(e1)
				local e2=Effect.CreateEffect(c)
				e2:SetType(EFFECT_TYPE_SINGLE)
				e2:SetCode(EFFECT_DISABLE_EFFECT)
				e2:SetValue(RESET_TURN_SET)
				e2:SetReset(RESET_EVENT+RESETS_STANDARD+RESET_PHASE+PHASE_END)
				tc:RegisterEffect(e2)
			end
			Duel.SpecialSummonComplete()
			local tc2=Duel.GetFieldCard(tp,LOCATION_GRAVE,Duel.GetFieldGroupCount(tp,LOCATION_GRAVE,0)-1)
			if tc2 then
				Duel.Overlay(tc,tc2)
			end
		end
	end
end
function c249001204.cfilter(c,tp)
	return c:IsType(TYPE_XYZ) and c:IsControler(tp)
end
function c249001204.spcon(e,tp,eg,ep,ev,re,r,rp)
	return eg:IsExists(c249001204.cfilter,1,nil,tp)
end
function c249001204.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and e:GetHandler():IsCanBeSpecialSummoned(e,0,tp,false,false) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,e:GetHandler(),1,0,0)
end
function c249001204.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) then
		Duel.SpecialSummon(c,0,tp,tp,false,false,POS_FACEUP)
	end
end
function c249001204.regop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_TOHAND)
	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_TRIGGER_O)
	e1:SetCode(EVENT_PHASE+PHASE_END)
	e1:SetRange(LOCATION_GRAVE)
	e1:SetCountLimit(1,2490012043)
	e1:SetTarget(c249001204.thtg)
	e1:SetOperation(c249001204.thop)
	e1:SetReset(RESET_EVENT+RESETS_STANDARD+RESET_PHASE+PHASE_END)
	c:RegisterEffect(e1)
end
function c249001204.filter2(c)
	return c:IsSetCard(0x231) and c:IsAbleToHand() and c:IsFaceup()
end
function c249001204.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(c249001204.filter2,tp,LOCATION_REMOVED,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_REMOVED)
end
function c249001204.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,c249001204.filter2,tp,LOCATION_REMOVED,0,1,1,nil)
	if g:GetCount()>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end