Revelation
Send 1 face-up Level 8 Dragon monster you control to the GY; Special Summon 1 Rank 8 Dragon Xyz Monster from your Extra Deck (this is treated as an Xyz Summon). You can only activate 1 "Revelation of Hope" per turn.
local s, id, o = GetID()
function s.initial_effect(c)
	--Activate
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1, id + EFFECT_COUNT_CODE_OATH)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.spfilter(c, e, tp, lc)
	return c:IsType(TYPE_XYZ) and c:IsRace(RACE_DRAGON) and c:IsRank(8) and c:IsCanBeSpecialSummoned(e, SUMMON_TYPE_XYZ, tp, false, false) and Duel.GetLocationCountFromEx(tp, tp, lc, c) > 0
end
function s.costfilter(c, e, tp)
	return c:IsFaceup() and c:IsRace(RACE_DRAGON) and c:IsLevel(8) and c:IsAbleToGraveAsCost() and Duel.IsExistingMatchingCard(s.spfilter, tp, LOCATION_EXTRA, 0, 1, nil, e, tp, c)
end
function s.cost(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.IsExistingMatchingCard(s.costfilter, tp, LOCATION_MZONE, 0, 1, nil, e, tp)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_TOGRAVE)
	local g = Duel.SelectMatchingCard(tp, s.costfilter, tp, LOCATION_MZONE, 0, 1, 1, nil, e, tp)
	Duel.SendtoGrave(g, REASON_COST)
end
function s.target(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return aux.MustMaterialCheck(nil, tp, EFFECT_MUST_BE_XMATERIAL) and (e:IsCostChecked() or Duel.IsExistingMatchingCard(s.spfilter, tp, LOCATION_EXTRA, 0, 1, nil, e, tp, nil))
	end
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, tp, LOCATION_EXTRA)
end
function s.activate(e, tp, eg, ep, ev, re, r, rp)
	if not aux.MustMaterialCheck(nil, tp, EFFECT_MUST_BE_XMATERIAL) then
		return
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
	local tc = Duel.SelectMatchingCard(tp, s.spfilter, tp, LOCATION_EXTRA, 0, 1, 1, nil, e, tp, nil):GetFirst()
	if not tc then
		return
	end
	tc:SetMaterial(nil)
	if Duel.SpecialSummon(tc, SUMMON_TYPE_XYZ, tp, tp, false, false, POS_FACEUP) then
		tc:CompleteProcedure()
	end
end


Revelation
Send 1 face-up Level 8 Dragon monster you control to the GY; Special Summon 1 Rank 8 Dragon Xyz Monster from your Extra Deck (this is treated as an Xyz Summon). You can only activate 1 "Revelation of Hope" per turn.
-- Revelation
local s, id, o = GetID()
function s.initial_effect(c)
	--Activate
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1, id + EFFECT_COUNT_CODE_OATH)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
end
function s.spfilter(c, e, tp, lc)
	return c:IsType(TYPE_XYZ) and c:IsRace(RACE_DRAGON) and c:IsRank(8) and c:IsCanBeSpecialSummoned(e, SUMMON_TYPE_XYZ, tp, false, false) and Duel.GetLocationCountFromEx(tp, tp, lc, c) > 0
end
function s.costfilter(c, e, tp)
	return c:IsFaceup() and c:IsRace(RACE_DRAGON) and c:IsLevel(8) and c:IsAbleToGraveAsCost() and Duel.IsExistingMatchingCard(s.spfilter, tp, LOCATION_EXTRA, 0, 1, nil, e, tp, c)
end
function s.cost(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return Duel.IsExistingMatchingCard(s.costfilter, tp, LOCATION_MZONE, 0, 1, nil, e, tp)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_TOGRAVE)
	local g = Duel.SelectMatchingCard(tp, s.costfilter, tp, LOCATION_MZONE, 0, 1, 1, nil, e, tp)
	Duel.SendtoGrave(g, REASON_COST)
end
function s.target(e, tp, eg, ep, ev, re, r, rp, chk)
	if chk == 0 then
		return aux.MustMaterialCheck(nil, tp, EFFECT_MUST_BE_XMATERIAL) and (e:IsCostChecked() or Duel.IsExistingMatchingCard(s.spfilter, tp, LOCATION_EXTRA, 0, 1, nil, e, tp, nil))
	end
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, tp, LOCATION_EXTRA)
end
function s.activate(e, tp, eg, ep, ev, re, r, rp)
	if not aux.MustMaterialCheck(nil, tp, EFFECT_MUST_BE_XMATERIAL) then
		return
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
	local tc = Duel.SelectMatchingCard(tp, s.spfilter, tp, LOCATION_EXTRA, 0, 1, 1, nil, e, tp, nil):GetFirst()
	if not tc then
		return
	end
	tc:SetMaterial(nil)
	if Duel.SpecialSummon(tc, SUMMON_TYPE_XYZ, tp, tp, false, false, POS_FACEUP) then
		tc:CompleteProcedure()
	end
end

