Fusion
(This card is always treated as "Polymerization".)
Fusion Summon 1 Fusion Monster from your Extra Deck, using monsters you control as Fusion Material. You can banish this card from your GY, then target 1 Fusion Monster in your GY; return it to the Extra Deck, then draw 1 card.
local s, id, o = GetID()
function s.initial_effect(c)
	--Activate
	FusionSpell.RegisterSummonEffect(c, {
		pre_select_mat_location = LOCATION_MZONE,
	})
	--to deck
	local e2 = Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id, 1))
	e2:SetCategory(CATEGORY_TOEXTRA + CATEGORY_DRAW)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCost(aux.bfgcost)
	e2:SetTarget(s.tdtg)
	e2:SetOperation(s.tdop)
	c:RegisterEffect(e2)
end
function s.tdfilter(c)
	return c:IsType(TYPE_FUSION) and c:IsAbleToExtra()
end
function s.tdtg(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
	if chkc then
		return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.tdfilter(chkc)
	end
	if chk == 0 then
		return Duel.IsPlayerCanDraw(tp, 1) and Duel.IsExistingTarget(s.tdfilter, tp, LOCATION_GRAVE, 0, 1, nil)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_TODECK)
	local g = Duel.SelectTarget(tp, s.tdfilter, tp, LOCATION_GRAVE, 0, 1, 1, nil)
	Duel.SetOperationInfo(0, CATEGORY_TOEXTRA, g, 1, 0, 0)
	Duel.SetOperationInfo(0, CATEGORY_DRAW, nil, 0, tp, 1)
end
function s.tdop(e, tp, eg, ep, ev, re, r, rp)
	local tc = Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and Duel.SendtoDeck(tc, nil, SEQ_DECKTOP, REASON_EFFECT) ~= 0 then
		Duel.BreakEffect()
		Duel.Draw(tp, 1, REASON_EFFECT)
	end
end


Fusion
(This card is always treated as "Polymerization".)
Fusion Summon 1 Fusion Monster from your Extra Deck, using monsters you control as Fusion Material. You can banish this card from your GY, then target 1 Fusion Monster in your GY; return it to the Extra Deck, then draw 1 card.
-- Fusion
local s, id, o = GetID()
function s.initial_effect(c)
	--Activate
	FusionSpell.RegisterSummonEffect(c, {
		pre_select_mat_location = LOCATION_MZONE,
	})
	--to deck
	local e2 = Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id, 1))
	e2:SetCategory(CATEGORY_TOEXTRA + CATEGORY_DRAW)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCost(aux.bfgcost)
	e2:SetTarget(s.tdtg)
	e2:SetOperation(s.tdop)
	c:RegisterEffect(e2)
end
function s.tdfilter(c)
	return c:IsType(TYPE_FUSION) and c:IsAbleToExtra()
end
function s.tdtg(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
	if chkc then
		return chkc:IsLocation(LOCATION_GRAVE) and chkc:IsControler(tp) and s.tdfilter(chkc)
	end
	if chk == 0 then
		return Duel.IsPlayerCanDraw(tp, 1) and Duel.IsExistingTarget(s.tdfilter, tp, LOCATION_GRAVE, 0, 1, nil)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_TODECK)
	local g = Duel.SelectTarget(tp, s.tdfilter, tp, LOCATION_GRAVE, 0, 1, 1, nil)
	Duel.SetOperationInfo(0, CATEGORY_TOEXTRA, g, 1, 0, 0)
	Duel.SetOperationInfo(0, CATEGORY_DRAW, nil, 0, tp, 1)
end
function s.tdop(e, tp, eg, ep, ev, re, r, rp)
	local tc = Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) and Duel.SendtoDeck(tc, nil, SEQ_DECKTOP, REASON_EFFECT) ~= 0 then
		Duel.BreakEffect()
		Duel.Draw(tp, 1, REASON_EFFECT)
	end
end

