name: Branch!
card_text: When a Fusion Monster(s) on the field is destroyed by battle or card effect and sent to the Graveyard: You can target 1 of the Fusion Materials in your Graveyard that was used for its Fusion Summon; Special Summon it.
lua: local s, id, o = GetID()
  function s.initial_effect(c)
  	--Activate
  	local e1 = Effect.CreateEffect(c)
  	e1:SetType(EFFECT_TYPE_ACTIVATE)
  	e1:SetCode(EVENT_FREE_CHAIN)
  	c:RegisterEffect(e1)
  	--spsummon
  	local e2 = Effect.CreateEffect(c)
  	e2:SetDescription(aux.Stringid(id, 0))
  	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
  	e2:SetType(EFFECT_TYPE_FIELD + EFFECT_TYPE_TRIGGER_O)
  	e2:SetCode(EVENT_TO_GRAVE)
  	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP + EFFECT_FLAG_CARD_TARGET)
  	e2:SetRange(LOCATION_SZONE)
  	e2:SetCondition(s.condition)
  	e2:SetTarget(s.target)
  	e2:SetOperation(s.operation)
  	c:RegisterEffect(e2)
  end
  function s.filter(c)
  	return c:IsPreviousLocation(LOCATION_ONFIELD) and c:IsReason(REASON_DESTROY) and c:IsType(TYPE_FUSION) and c:IsSummonType(SUMMON_TYPE_FUSION)
  end
  function s.condition(e, tp, eg, ep, ev, re, r, rp)
  	return eg:IsExists(s.filter, 1, nil)
  end
  function s.spfilter(c, eg, e, tp)
  	return c:IsReason(REASON_FUSION) and eg:IsContains(c:GetReasonCard()) 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 chkc:IsControler(tp) and chkc:IsLocation(LOCATION_GRAVE) and s.spfilter(chkc, eg, e, tp)
  	end
  	if chk == 0 then
  		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingTarget(s.spfilter, tp, LOCATION_GRAVE, 0, 1, nil, eg, e, tp)
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
  	local g = Duel.SelectTarget(tp, s.spfilter, tp, LOCATION_GRAVE, 0, 1, 1, nil, eg, e, tp)
  	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, g, 1, 0, 0)
  end
  function s.operation(e, tp, eg, ep, ev, re, r, rp)
  	local tc = Duel.GetFirstTarget()
  	if tc:IsRelateToEffect(e) then
  		Duel.SpecialSummon(tc, 0, tp, tp, false, false, POS_FACEUP)
  	end
  end
  
  
source_text: Branch!
  When a Fusion Monster(s) on the field is destroyed by battle or card effect and sent to the Graveyard: You can target 1 of the Fusion Materials in your Graveyard that was used for its Fusion Summon; Special Summon it.
target_text: -- Branch!
  local s, id, o = GetID()
  function s.initial_effect(c)
  	--Activate
  	local e1 = Effect.CreateEffect(c)
  	e1:SetType(EFFECT_TYPE_ACTIVATE)
  	e1:SetCode(EVENT_FREE_CHAIN)
  	c:RegisterEffect(e1)
  	--spsummon
  	local e2 = Effect.CreateEffect(c)
  	e2:SetDescription(aux.Stringid(id, 0))
  	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
  	e2:SetType(EFFECT_TYPE_FIELD + EFFECT_TYPE_TRIGGER_O)
  	e2:SetCode(EVENT_TO_GRAVE)
  	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP + EFFECT_FLAG_CARD_TARGET)
  	e2:SetRange(LOCATION_SZONE)
  	e2:SetCondition(s.condition)
  	e2:SetTarget(s.target)
  	e2:SetOperation(s.operation)
  	c:RegisterEffect(e2)
  end
  function s.filter(c)
  	return c:IsPreviousLocation(LOCATION_ONFIELD) and c:IsReason(REASON_DESTROY) and c:IsType(TYPE_FUSION) and c:IsSummonType(SUMMON_TYPE_FUSION)
  end
  function s.condition(e, tp, eg, ep, ev, re, r, rp)
  	return eg:IsExists(s.filter, 1, nil)
  end
  function s.spfilter(c, eg, e, tp)
  	return c:IsReason(REASON_FUSION) and eg:IsContains(c:GetReasonCard()) 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 chkc:IsControler(tp) and chkc:IsLocation(LOCATION_GRAVE) and s.spfilter(chkc, eg, e, tp)
  	end
  	if chk == 0 then
  		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingTarget(s.spfilter, tp, LOCATION_GRAVE, 0, 1, nil, eg, e, tp)
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
  	local g = Duel.SelectTarget(tp, s.spfilter, tp, LOCATION_GRAVE, 0, 1, 1, nil, eg, e, tp)
  	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, g, 1, 0, 0)
  end
  function s.operation(e, tp, eg, ep, ev, re, r, rp)
  	local tc = Duel.GetFirstTarget()
  	if tc:IsRelateToEffect(e) then
  		Duel.SpecialSummon(tc, 0, tp, tp, false, false, POS_FACEUP)
  	end
  end
  
  