--created by Xeno, coded by Lyris
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	aux.AddSynchroProcedure(c,aux.FilterBoolFunction(Card.IsAttribute,ATTRIBUTE_DARK),aux.NonTuner(Card.IsAttribute,ATTRIBUTE_DARK),1)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1,id)
	e1:SetCategory(CATEGORY_DECKDES)
	e1:SetTarget(s.target)
	e1:SetOperation(s.operation)
	c:RegisterEffect(e1)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetCountLimit(1,id+4)
	e2:SetProperty(EFFECT_FLAG_DELAY+EFFECT_FLAG_DAMAGE_STEP)
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetCost(s.cost)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	local ct=Duel.GetMatchingGroupCount(aux.AND(Card.IsFaceup,Card.IsType),tp,LOCATION_MZONE,0,nil,TYPE_SYNCHRO)
	if chk==0 then return ct>0 end
	Duel.SetOperationInfo(0,CATEGORY_DECKDES,nil,0,tp,2*ct)
end
function s.operation(e,tp,eg,ep,ev,re,r,rp)
	Duel.DiscardDeck(tp,2*Duel.GetMatchingGroupCount(aux.AND(Card.IsFaceup,Card.IsType),tp,LOCATION_MZONE,0,nil,TYPE_SYNCHRO),REASON_EFFECT)
end
function s.cfilter(c)
	return c:IsType(TYPE_SYNCHRO) and c:IsAbleToRemoveAsCost()
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return aux.bfgcost(e,tp,eg,ep,ev,re,r,rp,0)
		and Duel.IsExistingMatchingCard(s.cfilter,tp,LOCATION_GRAVE,0,1,e:GetHandler()) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_REMOVE)
	Duel.Remove(Duel.SelectMatchingCard(tp,s.cfilter,tp,LOCATION_GRAVE,0,1,1,e:GetHandler())+e:GetHandler(),POS_FACEUP,REASON_COST)
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(aux.Tuner(Card.IsCanBeSpecialSummoned,e,0,tp,false,false),tp,LOCATION_GRAVE,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_GRAVE)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
	local c=e:GetHandler()
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local tc=Duel.SelectMatchingCard(tp,aux.Tuner(Card.IsCanBeSpecialSummoned,e,0,tp,false,false),tp,LOCATION_GRAVE,0,1,1,nil):GetFirst()
	if tc and Duel.SpecialSummonStep(tc,0,tp,tp,false,false,POS_FACEUP) then
		local e1=Effect.CreateEffect(c)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_DISABLE)
		e1:SetReset(RESET_EVENT+RESETS_STANDARD)
		tc:RegisterEffect(e1)
		local e2=Effect.CreateEffect(c)
		e2:SetType(EFFECT_TYPE_SINGLE)
		e2:SetCode(EFFECT_DISABLE_EFFECT)
		e2:SetReset(RESET_EVENT+RESETS_STANDARD)
		tc:RegisterEffect(e2)
		local e5=Effect.CreateEffect(c)
		e5:SetType(EFFECT_TYPE_SINGLE)
		e5:SetCode(EFFECT_CHANGE_RACE)
		e5:SetReset(RESET_EVENT+RESETS_STANDARD)
		e5:SetValue(RACE_ZOMBIE)
		tc:RegisterEffect(e5)
	end
	Duel.SpecialSummonComplete()
end