diff --git a/unofficial/c511006469.lua b/unofficial/c511006469.lua
new file mode 100644
index 0000000000..6ec1b9e7f3
--- /dev/null
+++ b/unofficial/c511006469.lua
@@ -0,0 +1,75 @@
+--エクシーズ・ダブル・バック (Anime)
+--Xyz Double Back (Anime)
+local s,id=GetID()
+function s.initial_effect(c)
+	--Activate
+	local e1=Effect.CreateEffect(c)
+	e1:SetDescription(aux.Stringid(id,0))
+	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
+	e1:SetProperty(EFFECT_FLAG_CARD_TARGET+EFFECT_FLAG_DAMAGE_STEP)
+	e1:SetType(EFFECT_TYPE_ACTIVATE)
+	e1:SetCode(EVENT_DESTROYED)
+	e1:SetCondition(s.condition)
+	e1:SetTarget(s.target)
+	e1:SetOperation(s.activate)
+	c:RegisterEffect(e1)
+end
+function s.cfilter(c,tp)
+	return c:IsType(TYPE_XYZ) and c:IsReason(REASON_BATTLE+REASON_EFFECT) and c:GetPreviousControler()==tp 
+end
+function s.condition(e,tp,eg,ep,ev,re,r,rp)
+	return eg:IsExists(s.cfilter,1,nil,tp)
+end
+function s.filter1(c,e,tp,turn)
+	return c:IsType(TYPE_XYZ) and c:IsReason(REASON_DESTROY) and c:IsPreviousControler(tp) and c:IsPreviousLocation(LOCATION_MZONE)
+		and c:IsPreviousPosition(POS_FACEUP) and c:GetTurnID()==turn and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
+		and Duel.IsExistingTarget(s.filter2,tp,LOCATION_GRAVE,0,1,c,e,tp,c:GetAttack())
+end
+function s.filter2(c,e,tp,atk)
+	return c:IsAttackBelow(atk) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
+end
+function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
+	if chkc then return false end
+	if chk==0 then return not Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT)
+		and Duel.GetLocationCount(tp,LOCATION_MZONE)>1
+		and Duel.IsExistingTarget(s.filter1,tp,LOCATION_GRAVE,0,1,nil,e,tp,Duel.GetTurnCount()) end
+	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
+	local g1=Duel.SelectTarget(tp,s.filter1,tp,LOCATION_GRAVE,0,1,1,nil,e,tp,Duel.GetTurnCount())
+	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
+	local g2=Duel.SelectTarget(tp,s.filter2,tp,LOCATION_GRAVE,0,1,1,g1:GetFirst(),e,tp,g1:GetFirst():GetAttack())
+	g1:Merge(g2)
+	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g1,2,0,0)
+end
+function s.activate(e,tp,eg,ep,ev,re,r,rp)
+	if Duel.IsPlayerAffectedByEffect(tp,CARD_BLUEEYES_SPIRIT) then return end
+	local g=Duel.GetTargetCards(e)
+	if #g~=2 or Duel.GetLocationCount(tp,LOCATION_MZONE)<2 then return end
+	local fid=e:GetHandler():GetFieldID()
+	local tc=g:GetFirst()
+	for tc in aux.Next(g) do
+		if Duel.SpecialSummonStep(tc,0,tp,tp,false,false,POS_FACEUP) then
+			tc:RegisterFlagEffect(id,RESET_EVENT|RESETS_STANDARD,0,1,fid)
+		end
+	end
+	Duel.SpecialSummonComplete()
+	g:KeepAlive()
+	local e1=Effect.CreateEffect(e:GetHandler())
+	e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
+	e1:SetProperty(EFFECT_FLAG_IGNORE_IMMUNE)
+	e1:SetCode(EVENT_PHASE+PHASE_END)
+	e1:SetCountLimit(1)
+	e1:SetLabel(Duel.GetTurnCount())
+	e1:SetCondition(s.descon)
+	e1:SetOperation(s.desop)
+	e1:SetLabelObject(g)
+	e1:SetReset(RESET_PHASE+PHASE_END+RESET_SELF_TURN,2)
+	Duel.RegisterEffect(e1,tp)
+end
+function s.descon(e,tp,eg,ep,ev,re,r,rp)
+	return Duel.GetTurnCount()~=e:GetLabel() and Duel.GetTurnPlayer()==tp 
+end
+function s.desop(e,tp,eg,ep,ev,re,r,rp)
+	local tc=e:GetLabelObject()
+	Duel.Hint(HINT_CARD,0,id)
+	Duel.Destroy(tc,REASON_EFFECT)
+end
\ No newline at end of file