name: Gateway
card_text: If your opponent controls a Link Monster, you can Special Summon this card (from your hand). You can only Special Summon "Gateway Dragon" once per turn this way. Once per turn: You can Special Summon 1 Level 4 or lower DARK Dragon monster from your hand.
lua: local s, id, o = GetID()
  function s.initial_effect(c)
  	--special summon
  	local e1 = Effect.CreateEffect(c)
  	e1:SetType(EFFECT_TYPE_FIELD)
  	e1:SetCode(EFFECT_SPSUMMON_PROC)
  	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
  	e1:SetRange(LOCATION_HAND)
  	e1:SetCountLimit(1, id + EFFECT_COUNT_CODE_OATH)
  	e1:SetCondition(s.spcon)
  	c:RegisterEffect(e1)
  	--special summon
  	local e2 = Effect.CreateEffect(c)
  	e2:SetDescription(aux.Stringid(id, 0))
  	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
  	e2:SetType(EFFECT_TYPE_IGNITION)
  	e2:SetRange(LOCATION_MZONE)
  	e2:SetCountLimit(1)
  	e2:SetTarget(s.sptg)
  	e2:SetOperation(s.spop)
  	c:RegisterEffect(e2)
  end
  function s.spfilter(c)
  	return c:IsFaceup() and c:IsType(TYPE_LINK)
  end
  function s.spcon(e, c)
  	if c == nil then
  		return true
  	end
  	local tp = c:GetControler()
  	return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingMatchingCard(s.spfilter, tp, 0, LOCATION_MZONE, 1, nil)
  end
  function s.filter(c, e, tp)
  	return c:IsRace(RACE_DRAGON) and c:IsAttribute(ATTRIBUTE_DARK) and c:IsLevelBelow(4) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
  end
  function s.sptg(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingMatchingCard(s.filter, tp, LOCATION_HAND, 0, 1, nil, e, tp)
  	end
  	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, tp, LOCATION_HAND)
  end
  function s.spop(e, tp, eg, ep, ev, re, r, rp)
  	if Duel.GetLocationCount(tp, LOCATION_MZONE) <= 0 then
  		return
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
  	local g = Duel.SelectMatchingCard(tp, s.filter, tp, LOCATION_HAND, 0, 1, 1, nil, e, tp)
  	if g:GetCount() > 0 then
  		Duel.SpecialSummon(g, 0, tp, tp, false, false, POS_FACEUP)
  	end
  end
  
  
source_text: Gateway
  If your opponent controls a Link Monster, you can Special Summon this card (from your hand). You can only Special Summon "Gateway Dragon" once per turn this way. Once per turn: You can Special Summon 1 Level 4 or lower DARK Dragon monster from your hand.
target_text: -- Gateway
  local s, id, o = GetID()
  function s.initial_effect(c)
  	--special summon
  	local e1 = Effect.CreateEffect(c)
  	e1:SetType(EFFECT_TYPE_FIELD)
  	e1:SetCode(EFFECT_SPSUMMON_PROC)
  	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
  	e1:SetRange(LOCATION_HAND)
  	e1:SetCountLimit(1, id + EFFECT_COUNT_CODE_OATH)
  	e1:SetCondition(s.spcon)
  	c:RegisterEffect(e1)
  	--special summon
  	local e2 = Effect.CreateEffect(c)
  	e2:SetDescription(aux.Stringid(id, 0))
  	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
  	e2:SetType(EFFECT_TYPE_IGNITION)
  	e2:SetRange(LOCATION_MZONE)
  	e2:SetCountLimit(1)
  	e2:SetTarget(s.sptg)
  	e2:SetOperation(s.spop)
  	c:RegisterEffect(e2)
  end
  function s.spfilter(c)
  	return c:IsFaceup() and c:IsType(TYPE_LINK)
  end
  function s.spcon(e, c)
  	if c == nil then
  		return true
  	end
  	local tp = c:GetControler()
  	return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingMatchingCard(s.spfilter, tp, 0, LOCATION_MZONE, 1, nil)
  end
  function s.filter(c, e, tp)
  	return c:IsRace(RACE_DRAGON) and c:IsAttribute(ATTRIBUTE_DARK) and c:IsLevelBelow(4) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false)
  end
  function s.sptg(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsExistingMatchingCard(s.filter, tp, LOCATION_HAND, 0, 1, nil, e, tp)
  	end
  	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, tp, LOCATION_HAND)
  end
  function s.spop(e, tp, eg, ep, ev, re, r, rp)
  	if Duel.GetLocationCount(tp, LOCATION_MZONE) <= 0 then
  		return
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
  	local g = Duel.SelectMatchingCard(tp, s.filter, tp, LOCATION_HAND, 0, 1, 1, nil, e, tp)
  	if g:GetCount() > 0 then
  		Duel.SpecialSummon(g, 0, tp, tp, false, false, POS_FACEUP)
  	end
  end
  
  