name: Draco
card_text: When this card is activated: You can add 1 "True Draco" or "True King" monster, or 1 "Dracoslayer" or "Dracoverlord" Pendulum Monster, from your Deck to your hand. If a face-up "True Draco" and/or "True King" monster(s) you control is destroyed by battle or card effect and sent to the GY: You can target 1 of them; place it face-up in your Spell & Trap Zone as a Continuous Spell. You can only use this effect of "Draco Stand-Off" once per turn. You can only activate 1 "Draco Stand-Off" per turn.
external_ids: local SETCARD_ID_0 = 0xf9 --True
  local SETCARD_ID_1 = 0xda --Dracoverlord
  
lua: local SETCARD_ID_0 = 0xf9 --True
  local SETCARD_ID_1 = 0xda --Dracoverlord
  local s, id, o = GetID()
  function s.initial_effect(c)
  	--Activate
  	local e1 = Effect.CreateEffect(c)
  	e1:SetCategory(CATEGORY_TOHAND + CATEGORY_SEARCH)
  	e1:SetType(EFFECT_TYPE_ACTIVATE)
  	e1:SetCode(EVENT_FREE_CHAIN)
  	e1:SetCountLimit(1, id + EFFECT_COUNT_CODE_OATH)
  	e1:SetOperation(s.activate)
  	c:RegisterEffect(e1)
  	--place
  	local custom_code = aux.RegisterMergedDelayedEvent_ToSingleCard(c, id, EVENT_DESTROYED)
  	local e2 = Effect.CreateEffect(c)
  	e2:SetDescription(aux.Stringid(id, 1))
  	e2:SetType(EFFECT_TYPE_FIELD + EFFECT_TYPE_TRIGGER_O)
  	e2:SetCode(custom_code)
  	e2:SetRange(LOCATION_SZONE)
  	e2:SetProperty(EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_DAMAGE_STEP + EFFECT_FLAG_DELAY)
  	e2:SetCountLimit(1, id)
  	e2:SetCondition(s.setcon)
  	e2:SetTarget(s.settg)
  	e2:SetOperation(s.setop)
  	c:RegisterEffect(e2)
  end
  function s.thfilter(c)
  	return (c:IsSetCard(SETCARD_ID_1) and c:IsType(TYPE_MONSTER) or c:IsSetCard(SETCARD_ID_1, 0xc7) and c:IsType(TYPE_PENDULUM)) and c:IsAbleToHand()
  end
  function s.activate(e, tp, eg, ep, ev, re, r, rp)
  	local g = Duel.GetMatchingGroup(s.thfilter, tp, LOCATION_DECK, 0, nil)
  	if g:GetCount() > 0 and Duel.SelectYesNo(tp, aux.Stringid(id, 0)) then
  		Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_ATOHAND)
  		local sg = g:Select(tp, 1, 1, nil)
  		Duel.SendtoHand(sg, nil, REASON_EFFECT)
  		Duel.ConfirmCards(1 - tp, sg)
  	end
  end
  function s.cfilter(c, tp)
  	return c:IsPreviousPosition(POS_FACEUP)
  		and c:IsPreviousControler(tp)
  		and c:IsPreviousLocation(LOCATION_MZONE)
  		and c:IsLocation(LOCATION_GRAVE)
  		and c:IsPreviousSetCard(SETCARD_ID_1)
  		and c:IsSetCard(SETCARD_ID_1)
  		and c:IsType(TYPE_MONSTER)
  		and c:IsReason(REASON_BATTLE + REASON_EFFECT)
  end
  function s.setcon(e, tp, eg, ep, ev, re, r, rp)
  	return eg:IsExists(s.cfilter, 1, nil, tp)
  end
  function s.tgfilter(c, e, tp)
  	local r = LOCATION_REASON_TOFIELD
  	if not c:IsControler(tp) then
  		if not c:IsAbleToChangeControler() then
  			return false
  		end
  		r = LOCATION_REASON_CONTROL
  	end
  	return Duel.GetLocationCount(tp, LOCATION_SZONE, tp, r) > 0 and not c:IsForbidden() and c:CheckUniqueOnField(tp) and c:IsCanBeEffectTarget(e) and c:IsLocation(LOCATION_GRAVE)
  end
  function s.settg(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
  	local mg = eg:Filter(s.cfilter, nil, tp):Filter(s.tgfilter, nil, e, tp)
  	if chkc then
  		return mg:IsContains(chkc)
  	end
  	if chk == 0 then
  		return mg:GetCount() > 0
  	end
  	local g = mg
  	if mg:GetCount() > 1 then
  		Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_TARGET)
  		g = mg:Select(tp, 1, 1, nil)
  	end
  	Duel.SetTargetCard(g)
  end
  function s.setop(e, tp, eg, ep, ev, re, r, rp)
  	local tc = Duel.GetFirstTarget()
  	if tc:IsRelateToChain() and tc:IsType(TYPE_MONSTER) and aux.NecroValleyFilter()(tc) and Duel.MoveToField(tc, tp, tp, LOCATION_SZONE, POS_FACEUP, true) then
  		local e1 = Effect.CreateEffect(e:GetHandler())
  		e1:SetCode(EFFECT_CHANGE_TYPE)
  		e1:SetType(EFFECT_TYPE_SINGLE)
  		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
  		e1:SetReset(RESET_EVENT + RESETS_STANDARD - RESET_TURN_SET)
  		e1:SetValue(TYPE_SPELL + TYPE_CONTINUOUS)
  		tc:RegisterEffect(e1)
  	end
  end
  
  
source_text: Draco
  When this card is activated: You can add 1 "True Draco" or "True King" monster, or 1 "Dracoslayer" or "Dracoverlord" Pendulum Monster, from your Deck to your hand. If a face-up "True Draco" and/or "True King" monster(s) you control is destroyed by battle or card effect and sent to the GY: You can target 1 of them; place it face-up in your Spell & Trap Zone as a Continuous Spell. You can only use this effect of "Draco Stand-Off" once per turn. You can only activate 1 "Draco Stand-Off" per turn.
target_text: -- Draco
  local SETCARD_ID_0 = 0xf9 --True
  local SETCARD_ID_1 = 0xda --Dracoverlord
  local s, id, o = GetID()
  function s.initial_effect(c)
  	--Activate
  	local e1 = Effect.CreateEffect(c)
  	e1:SetCategory(CATEGORY_TOHAND + CATEGORY_SEARCH)
  	e1:SetType(EFFECT_TYPE_ACTIVATE)
  	e1:SetCode(EVENT_FREE_CHAIN)
  	e1:SetCountLimit(1, id + EFFECT_COUNT_CODE_OATH)
  	e1:SetOperation(s.activate)
  	c:RegisterEffect(e1)
  	--place
  	local custom_code = aux.RegisterMergedDelayedEvent_ToSingleCard(c, id, EVENT_DESTROYED)
  	local e2 = Effect.CreateEffect(c)
  	e2:SetDescription(aux.Stringid(id, 1))
  	e2:SetType(EFFECT_TYPE_FIELD + EFFECT_TYPE_TRIGGER_O)
  	e2:SetCode(custom_code)
  	e2:SetRange(LOCATION_SZONE)
  	e2:SetProperty(EFFECT_FLAG_CARD_TARGET + EFFECT_FLAG_DAMAGE_STEP + EFFECT_FLAG_DELAY)
  	e2:SetCountLimit(1, id)
  	e2:SetCondition(s.setcon)
  	e2:SetTarget(s.settg)
  	e2:SetOperation(s.setop)
  	c:RegisterEffect(e2)
  end
  function s.thfilter(c)
  	return (c:IsSetCard(SETCARD_ID_1) and c:IsType(TYPE_MONSTER) or c:IsSetCard(SETCARD_ID_1, 0xc7) and c:IsType(TYPE_PENDULUM)) and c:IsAbleToHand()
  end
  function s.activate(e, tp, eg, ep, ev, re, r, rp)
  	local g = Duel.GetMatchingGroup(s.thfilter, tp, LOCATION_DECK, 0, nil)
  	if g:GetCount() > 0 and Duel.SelectYesNo(tp, aux.Stringid(id, 0)) then
  		Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_ATOHAND)
  		local sg = g:Select(tp, 1, 1, nil)
  		Duel.SendtoHand(sg, nil, REASON_EFFECT)
  		Duel.ConfirmCards(1 - tp, sg)
  	end
  end
  function s.cfilter(c, tp)
  	return c:IsPreviousPosition(POS_FACEUP)
  		and c:IsPreviousControler(tp)
  		and c:IsPreviousLocation(LOCATION_MZONE)
  		and c:IsLocation(LOCATION_GRAVE)
  		and c:IsPreviousSetCard(SETCARD_ID_1)
  		and c:IsSetCard(SETCARD_ID_1)
  		and c:IsType(TYPE_MONSTER)
  		and c:IsReason(REASON_BATTLE + REASON_EFFECT)
  end
  function s.setcon(e, tp, eg, ep, ev, re, r, rp)
  	return eg:IsExists(s.cfilter, 1, nil, tp)
  end
  function s.tgfilter(c, e, tp)
  	local r = LOCATION_REASON_TOFIELD
  	if not c:IsControler(tp) then
  		if not c:IsAbleToChangeControler() then
  			return false
  		end
  		r = LOCATION_REASON_CONTROL
  	end
  	return Duel.GetLocationCount(tp, LOCATION_SZONE, tp, r) > 0 and not c:IsForbidden() and c:CheckUniqueOnField(tp) and c:IsCanBeEffectTarget(e) and c:IsLocation(LOCATION_GRAVE)
  end
  function s.settg(e, tp, eg, ep, ev, re, r, rp, chk, chkc)
  	local mg = eg:Filter(s.cfilter, nil, tp):Filter(s.tgfilter, nil, e, tp)
  	if chkc then
  		return mg:IsContains(chkc)
  	end
  	if chk == 0 then
  		return mg:GetCount() > 0
  	end
  	local g = mg
  	if mg:GetCount() > 1 then
  		Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_TARGET)
  		g = mg:Select(tp, 1, 1, nil)
  	end
  	Duel.SetTargetCard(g)
  end
  function s.setop(e, tp, eg, ep, ev, re, r, rp)
  	local tc = Duel.GetFirstTarget()
  	if tc:IsRelateToChain() and tc:IsType(TYPE_MONSTER) and aux.NecroValleyFilter()(tc) and Duel.MoveToField(tc, tp, tp, LOCATION_SZONE, POS_FACEUP, true) then
  		local e1 = Effect.CreateEffect(e:GetHandler())
  		e1:SetCode(EFFECT_CHANGE_TYPE)
  		e1:SetType(EFFECT_TYPE_SINGLE)
  		e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
  		e1:SetReset(RESET_EVENT + RESETS_STANDARD - RESET_TURN_SET)
  		e1:SetValue(TYPE_SPELL + TYPE_CONTINUOUS)
  		tc:RegisterEffect(e1)
  	end
  end
  
  