name: Delta
card_text: When this card is activated: You can send 1 Level 5 or higher Zombie monster from your Deck to the GY. You can only use each of the following effects of "Delta of Invitation" once per turn. If a Zombie monster is on the field: You can Special Summon 1 "Delta Token" (Zombie/DARK/Level 5/ATK 0/DEF 0). If a monster(s) is added from the GY to the hand, while this card is in your GY (except during the Damage Step): You can add this card to your hand. You can only activate 1 "Delta of Invitation" per turn.
lua: local s, id, o = GetID()
  function s.initial_effect(c)
  	--Activate
  	local e1 = Effect.CreateEffect(c)
  	e1:SetDescription(aux.Stringid(id, 0))
  	e1:SetCategory(CATEGORY_TOGRAVE + CATEGORY_DECKDES)
  	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)
  	--Special Summon
  	local e2 = Effect.CreateEffect(c)
  	e2:SetDescription(aux.Stringid(id, 1))
  	e2:SetCategory(CATEGORY_SPECIAL_SUMMON + CATEGORY_TOKEN)
  	e2:SetType(EFFECT_TYPE_IGNITION)
  	e2:SetRange(LOCATION_FZONE)
  	e2:SetCountLimit(1, id + o)
  	e2:SetCondition(s.tkcon)
  	e2:SetTarget(s.tktg)
  	e2:SetOperation(s.tkop)
  	c:RegisterEffect(e2)
  	--to hand
  	local e3 = Effect.CreateEffect(c)
  	e3:SetDescription(aux.Stringid(id, 2))
  	e3:SetCategory(CATEGORY_TOHAND)
  	e3:SetType(EFFECT_TYPE_FIELD + EFFECT_TYPE_TRIGGER_O)
  	e3:SetProperty(EFFECT_FLAG_DELAY)
  	e3:SetCode(EVENT_TO_HAND)
  	e3:SetRange(LOCATION_GRAVE)
  	e3:SetCountLimit(1, id + o * 2)
  	e3:SetCondition(s.thcon)
  	e3:SetTarget(s.thtg)
  	e3:SetOperation(s.thop)
  	c:RegisterEffect(e3)
  end
  function s.tgfilter(c)
  	return c:IsRace(RACE_ZOMBIE) and c:IsLevelAbove(5) and c:IsAbleToGrave()
  end
  function s.activate(e, tp, eg, ep, ev, re, r, rp)
  	local g = Duel.GetMatchingGroup(s.tgfilter, tp, LOCATION_DECK, 0, nil)
  	if g:GetCount() > 0 and Duel.SelectYesNo(tp, aux.Stringid(id, 3)) then
  		Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_TOGRAVE)
  		local sg = g:Select(tp, 1, 1, nil)
  		Duel.SendtoGrave(sg, REASON_EFFECT)
  	end
  end
  function s.tkcon(e, tp, eg, ep, ev, re, r, rp)
  	return Duel.IsExistingMatchingCard(aux.AND(Card.IsFaceup, Card.IsRace), tp, LOCATION_MZONE, LOCATION_MZONE, 1, nil, RACE_ZOMBIE)
  end
  function s.tktg(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsPlayerCanSpecialSummonMonster(tp, id + o, 0, TYPES_TOKEN_MONSTER, 0, 0, 5, RACE_ZOMBIE, ATTRIBUTE_DARK, POS_FACEUP)
  	end
  	Duel.SetOperationInfo(0, CATEGORY_TOKEN, nil, 1, 0, 0)
  	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, 0, 0)
  end
  function s.tkop(e, tp, eg, ep, ev, re, r, rp)
  	local c = e:GetHandler()
  	if Duel.GetLocationCount(tp, LOCATION_MZONE) <= 0 or not Duel.IsPlayerCanSpecialSummonMonster(tp, id + o, 0, TYPES_TOKEN_MONSTER, 0, 0, 5, RACE_ZOMBIE, ATTRIBUTE_DARK, POS_FACEUP) then
  		return
  	end
  	local token = Duel.CreateToken(tp, id + o)
  	Duel.SpecialSummon(token, 0, tp, tp, false, false, POS_FACEUP)
  end
  function s.trigfilter(c)
  	return c:IsType(TYPE_MONSTER) and c:IsPreviousLocation(LOCATION_GRAVE)
  end
  function s.thcon(e, tp, eg, ep, ev, re, r, rp)
  	return eg:IsExists(s.trigfilter, 1, nil)
  end
  function s.thtg(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return e:GetHandler():IsAbleToHand()
  	end
  	Duel.SetOperationInfo(0, CATEGORY_TOHAND, e:GetHandler(), 1, 0, 0)
  end
  function s.thop(e, tp, eg, ep, ev, re, r, rp)
  	local c = e:GetHandler()
  	if c:IsRelateToEffect(e) and aux.NecroValleyFilter()(c) then
  		Duel.SendtoHand(c, nil, REASON_EFFECT)
  		Duel.ConfirmCards(1 - tp, c)
  	end
  end
  
  
source_text: Delta
  When this card is activated: You can send 1 Level 5 or higher Zombie monster from your Deck to the GY. You can only use each of the following effects of "Delta of Invitation" once per turn. If a Zombie monster is on the field: You can Special Summon 1 "Delta Token" (Zombie/DARK/Level 5/ATK 0/DEF 0). If a monster(s) is added from the GY to the hand, while this card is in your GY (except during the Damage Step): You can add this card to your hand. You can only activate 1 "Delta of Invitation" per turn.
target_text: -- Delta
  local s, id, o = GetID()
  function s.initial_effect(c)
  	--Activate
  	local e1 = Effect.CreateEffect(c)
  	e1:SetDescription(aux.Stringid(id, 0))
  	e1:SetCategory(CATEGORY_TOGRAVE + CATEGORY_DECKDES)
  	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)
  	--Special Summon
  	local e2 = Effect.CreateEffect(c)
  	e2:SetDescription(aux.Stringid(id, 1))
  	e2:SetCategory(CATEGORY_SPECIAL_SUMMON + CATEGORY_TOKEN)
  	e2:SetType(EFFECT_TYPE_IGNITION)
  	e2:SetRange(LOCATION_FZONE)
  	e2:SetCountLimit(1, id + o)
  	e2:SetCondition(s.tkcon)
  	e2:SetTarget(s.tktg)
  	e2:SetOperation(s.tkop)
  	c:RegisterEffect(e2)
  	--to hand
  	local e3 = Effect.CreateEffect(c)
  	e3:SetDescription(aux.Stringid(id, 2))
  	e3:SetCategory(CATEGORY_TOHAND)
  	e3:SetType(EFFECT_TYPE_FIELD + EFFECT_TYPE_TRIGGER_O)
  	e3:SetProperty(EFFECT_FLAG_DELAY)
  	e3:SetCode(EVENT_TO_HAND)
  	e3:SetRange(LOCATION_GRAVE)
  	e3:SetCountLimit(1, id + o * 2)
  	e3:SetCondition(s.thcon)
  	e3:SetTarget(s.thtg)
  	e3:SetOperation(s.thop)
  	c:RegisterEffect(e3)
  end
  function s.tgfilter(c)
  	return c:IsRace(RACE_ZOMBIE) and c:IsLevelAbove(5) and c:IsAbleToGrave()
  end
  function s.activate(e, tp, eg, ep, ev, re, r, rp)
  	local g = Duel.GetMatchingGroup(s.tgfilter, tp, LOCATION_DECK, 0, nil)
  	if g:GetCount() > 0 and Duel.SelectYesNo(tp, aux.Stringid(id, 3)) then
  		Duel.Hint(HINT_SELECTMSG, tp, HINTMSG_TOGRAVE)
  		local sg = g:Select(tp, 1, 1, nil)
  		Duel.SendtoGrave(sg, REASON_EFFECT)
  	end
  end
  function s.tkcon(e, tp, eg, ep, ev, re, r, rp)
  	return Duel.IsExistingMatchingCard(aux.AND(Card.IsFaceup, Card.IsRace), tp, LOCATION_MZONE, LOCATION_MZONE, 1, nil, RACE_ZOMBIE)
  end
  function s.tktg(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return Duel.GetLocationCount(tp, LOCATION_MZONE) > 0 and Duel.IsPlayerCanSpecialSummonMonster(tp, id + o, 0, TYPES_TOKEN_MONSTER, 0, 0, 5, RACE_ZOMBIE, ATTRIBUTE_DARK, POS_FACEUP)
  	end
  	Duel.SetOperationInfo(0, CATEGORY_TOKEN, nil, 1, 0, 0)
  	Duel.SetOperationInfo(0, CATEGORY_SPECIAL_SUMMON, nil, 1, 0, 0)
  end
  function s.tkop(e, tp, eg, ep, ev, re, r, rp)
  	local c = e:GetHandler()
  	if Duel.GetLocationCount(tp, LOCATION_MZONE) <= 0 or not Duel.IsPlayerCanSpecialSummonMonster(tp, id + o, 0, TYPES_TOKEN_MONSTER, 0, 0, 5, RACE_ZOMBIE, ATTRIBUTE_DARK, POS_FACEUP) then
  		return
  	end
  	local token = Duel.CreateToken(tp, id + o)
  	Duel.SpecialSummon(token, 0, tp, tp, false, false, POS_FACEUP)
  end
  function s.trigfilter(c)
  	return c:IsType(TYPE_MONSTER) and c:IsPreviousLocation(LOCATION_GRAVE)
  end
  function s.thcon(e, tp, eg, ep, ev, re, r, rp)
  	return eg:IsExists(s.trigfilter, 1, nil)
  end
  function s.thtg(e, tp, eg, ep, ev, re, r, rp, chk)
  	if chk == 0 then
  		return e:GetHandler():IsAbleToHand()
  	end
  	Duel.SetOperationInfo(0, CATEGORY_TOHAND, e:GetHandler(), 1, 0, 0)
  end
  function s.thop(e, tp, eg, ep, ev, re, r, rp)
  	local c = e:GetHandler()
  	if c:IsRelateToEffect(e) and aux.NecroValleyFilter()(c) then
  		Duel.SendtoHand(c, nil, REASON_EFFECT)
  		Duel.ConfirmCards(1 - tp, c)
  	end
  end
  
  