Stardust
1 Tuner + 1+ non-Tuner monsters
When this card is Synchro Summoned while you control no other monsters: You can target 1 "Junk" monster in your GY; Special Summon it. You can only use this effect of "Stardust Assault Warrior" once per turn. If this card attacks a Defense Position monster, inflict piercing battle damage.
local SETCARD_ID_0 = 0x43 --Junk

local SETCARD_ID_0 = 0x43 --Junk
local s, id, o = GetID()
function s.initial_effect(c)
	--synchro summon
	aux.AddSynchroProcedure(c, nil, aux.NonTuner(nil), 1)
	c:EnableReviveLimit()
	--special summon
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_SPSUMMON_SUCCESS)
	e1:SetCountLimit(1, id)
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--pierce
	local e2 = Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetCode(EFFECT_PIERCE)
	c:RegisterEffect(e2)
end
function s.spcon(e, tp, eg, ep, ev, re, r, rp)
	return e:GetHandler():IsSummonType(SUMMON_TYPE_SYNCHRO) and not Duel.IsExistingMatchingCard(nil, tp, LOCATION_MZONE, 0, 1, e:GetHandler())
end
function s.spfilter(c, e, tp)
	return c:IsSetCard(SETCARD_ID_0) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
end
function s.sptg(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, 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, e, tp)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
	local g = Duel.SelectTarget(tp, s.spfilter, tp, LOCATION_GRAVE, 0, 1, 1, nil, e, tp)
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, g, 1, 0, 0)
end
function s.spop(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


Stardust
1 Tuner + 1+ non-Tuner monsters
When this card is Synchro Summoned while you control no other monsters: You can target 1 "Junk" monster in your GY; Special Summon it. You can only use this effect of "Stardust Assault Warrior" once per turn. If this card attacks a Defense Position monster, inflict piercing battle damage.
-- Stardust
local SETCARD_ID_0 = 0x43 --Junk
local s, id, o = GetID()
function s.initial_effect(c)
	--synchro summon
	aux.AddSynchroProcedure(c, nil, aux.NonTuner(nil), 1)
	c:EnableReviveLimit()
	--special summon
	local e1 = Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id, 0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_SINGLE + EFFECT_TYPE_TRIGGER_O)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_SPSUMMON_SUCCESS)
	e1:SetCountLimit(1, id)
	e1:SetCondition(s.spcon)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--pierce
	local e2 = Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetCode(EFFECT_PIERCE)
	c:RegisterEffect(e2)
end
function s.spcon(e, tp, eg, ep, ev, re, r, rp)
	return e:GetHandler():IsSummonType(SUMMON_TYPE_SYNCHRO) and not Duel.IsExistingMatchingCard(nil, tp, LOCATION_MZONE, 0, 1, e:GetHandler())
end
function s.spfilter(c, e, tp)
	return c:IsSetCard(SETCARD_ID_0) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
end
function s.sptg(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, 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, e, tp)
	end
	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
	local g = Duel.SelectTarget(tp, s.spfilter, tp, LOCATION_GRAVE, 0, 1, 1, nil, e, tp)
	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, g, 1, 0, 0)
end
function s.spop(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

