name: Guardragon
card_text: You can send 1 Effect Monster from your hand to the GY; Special Summon 1 Level 4 or lower Dragon Normal Monster from your hand, Deck, or GY, in Defense Position. You can only use this effect of "Guardragon Corewakening" once per turn.
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)
  	--special summon
  	local e2 = Effect.CreateEffect(c)
  	e2:SetDescription(aux.Stringid(id, 0))
  	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
  	e2:SetType(EFFECT_TYPE_QUICK_O)
  	e2:SetCode(EVENT_FREE_CHAIN)
  	e2:SetRange(LOCATION_SZONE)
  	e2:SetHintTiming(0, TIMING_END_PHASE)
  	e2:SetCountLimit(1, id)
  	e2:SetCost(s.spcost)
  	e2:SetTarget(s.sptg)
  	e2:SetOperation(s.spop)
  	c:RegisterEffect(e2)
  end
  function s.costfilter(c)
  	return c:IsType(TYPE_EFFECT) and c:IsAbleToGraveAsCost()
  end
  function s.spcost(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return Duel.IsExistingMatchingCard(s.costfilter, tp, LOCATION_HAND, 0, 1, nil)
  	end
  	Duel.DiscardHand(tp, s.costfilter, 1, 1, REASON_COST)
  end
  function s.spfilter(c, e, tp)
  	return c:IsType(TYPE_NORMAL) and c:IsRace(RACE_DRAGON) and c:IsLevelBelow(4) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false, POS_FACEUP_DEFENSE)
  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.spfilter, tp, LOCATION_HAND + LOCATION_DECK + LOCATION_GRAVE, 0, 1, nil, e, tp)
  	end
  	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, tp, LOCATION_HAND + LOCATION_DECK + LOCATION_GRAVE)
  end
  function s.spop(e, tp, eg, ep, ev, re, r, rp)
  	local c = e:GetHandler()
  	if not c:IsRelateToEffect(e) or Duel.GetLocationCount(tp, LOCATION_MZONE) <= 0 then
  		return
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
  	local g = Duel.SelectMatchingCard(tp, aux.NecroValleyFilter(s.spfilter), tp, LOCATION_HAND + LOCATION_DECK + LOCATION_GRAVE, 0, 1, 1, nil, e, tp)
  	if g:GetCount() > 0 then
  		Duel.SpecialSummon(g, 0, tp, tp, false, false, POS_FACEUP_DEFENSE)
  	end
  end
  
  
source_text: Guardragon
  You can send 1 Effect Monster from your hand to the GY; Special Summon 1 Level 4 or lower Dragon Normal Monster from your hand, Deck, or GY, in Defense Position. You can only use this effect of "Guardragon Corewakening" once per turn.
target_text: -- Guardragon
  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)
  	--special summon
  	local e2 = Effect.CreateEffect(c)
  	e2:SetDescription(aux.Stringid(id, 0))
  	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
  	e2:SetType(EFFECT_TYPE_QUICK_O)
  	e2:SetCode(EVENT_FREE_CHAIN)
  	e2:SetRange(LOCATION_SZONE)
  	e2:SetHintTiming(0, TIMING_END_PHASE)
  	e2:SetCountLimit(1, id)
  	e2:SetCost(s.spcost)
  	e2:SetTarget(s.sptg)
  	e2:SetOperation(s.spop)
  	c:RegisterEffect(e2)
  end
  function s.costfilter(c)
  	return c:IsType(TYPE_EFFECT) and c:IsAbleToGraveAsCost()
  end
  function s.spcost(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return Duel.IsExistingMatchingCard(s.costfilter, tp, LOCATION_HAND, 0, 1, nil)
  	end
  	Duel.DiscardHand(tp, s.costfilter, 1, 1, REASON_COST)
  end
  function s.spfilter(c, e, tp)
  	return c:IsType(TYPE_NORMAL) and c:IsRace(RACE_DRAGON) and c:IsLevelBelow(4) and c:IsCanBeSpecialSummoned(e, 0, tp, false, false, POS_FACEUP_DEFENSE)
  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.spfilter, tp, LOCATION_HAND + LOCATION_DECK + LOCATION_GRAVE, 0, 1, nil, e, tp)
  	end
  	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, tp, LOCATION_HAND + LOCATION_DECK + LOCATION_GRAVE)
  end
  function s.spop(e, tp, eg, ep, ev, re, r, rp)
  	local c = e:GetHandler()
  	if not c:IsRelateToEffect(e) or Duel.GetLocationCount(tp, LOCATION_MZONE) <= 0 then
  		return
  	end
  	Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_SPSUMMON)
  	local g = Duel.SelectMatchingCard(tp, aux.NecroValleyFilter(s.spfilter), tp, LOCATION_HAND + LOCATION_DECK + LOCATION_GRAVE, 0, 1, 1, nil, e, tp)
  	if g:GetCount() > 0 then
  		Duel.SpecialSummon(g, 0, tp, tp, false, false, POS_FACEUP_DEFENSE)
  	end
  end
  
  