--created & coded by Lyris
--機光襲雷竜－ビッグバン
local s,id,o=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	aux.AddFusionProcFunRep(c,s.ffilter,2,true)
	c:EnableCounterPermit(0x921)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCode(EFFECT_SELF_DESTROY)
	e1:SetCondition(function(e,tp,eg,ep,ev,re,r,rp) return Duel.GetCounter(tp,1,1,0x921)>=5 end)
	c:RegisterEffect(e1)
	local e0=Effect.CreateEffect(c)
	e0:SetType(EFFECT_TYPE_SINGLE)
	e0:SetProperty(EFFECT_FLAG_SINGLE_RANGE)
	e0:SetCode(EFFECT_IMMUNE_EFFECT)
	e0:SetRange(LOCATION_MZONE)
	e0:SetCondition(s.tgcon)
	e0:SetValue(s.etarget)
	c:RegisterEffect(e0)
	local e5=e0:Clone()
	e5:SetCode(EFFECT_CANNOT_BE_BATTLE_TARGET)
	e5:SetValue(aux.imval1)
	c:RegisterEffect(e5)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_CONTINUOUS+EFFECT_TYPE_FIELD)
	e2:SetCode(EVENT_DESTROYED)
	e2:SetRange(LOCATION_MZONE)
	e2:SetOperation(s.acop)
	c:RegisterEffect(e2)
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_F)
	e4:SetCode(EVENT_DESTROYED)
	e4:SetCategory(CATEGORY_DESTROY)
	e4:SetCondition(function(e,tp,eg,ep,ev,re,r,rp) return re==e1 end)
	e4:SetTarget(s.target)
	e4:SetOperation(s.activate)
	c:RegisterEffect(e4)
	local e0=Effect.CreateEffect(c)
	e0:SetCategory(CATEGORY_DESTROY+CATEGORY_SPECIAL_SUMMON)
	e0:SetType(EFFECT_TYPE_QUICK_O)
	e0:SetRange(LOCATION_MZONE)
	e0:SetCode(EVENT_FREE_CHAIN)
	e0:SetCountLimit(1)
	e0:SetHintTiming(0,TIMINGS_CHECK_MONSTER+TIMING_BATTLE_START)
	e0:SetTarget(s.destg)
	e0:SetOperation(s.desop)
	c:RegisterEffect(e0)
end
function s.desfilter(c,e,tp)
	return c:IsLevelBelow(5) and c:IsSetCard(0x7c4) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk)
	local c=e:GetHandler()
	if chk==0 then return Duel.GetMZoneCount(tp,c)>0 and Duel.GetTurnPlayer()~=tp and aux.bpcon()
		and Duel.IsExistingMatchingCard(s.desfilter,tp,LOCATION_HAND+LOCATION_GRAVE,0,1,nil,e,tp) end
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,e:GetHandler(),1,0,0)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND+LOCATION_GRAVE)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if c:IsRelateToEffect(e) and Duel.Destroy(c,REASON_EFFECT)~=0 then
		if Duel.GetAttacker() then Duel.NegateAttack()
		else
			local e1=Effect.CreateEffect(c)
			e1:SetType(EFFECT_TYPE_FIELD+EFFECT_TYPE_CONTINUOUS)
			e1:SetCode(EVENT_ATTACK_ANNOUNCE)
			e1:SetReset(RESET_PHASE+PHASE_END)
			e1:SetCountLimit(1)
			e1:SetOperation(function() if Duel.GetTurnPlayer()~=tp then Duel.Hint(HINT_CARD,0,id) Duel.NegateAttack() end end)
			Duel.RegisterEffect(e1,tp)
		end
		if Duel.GetLocationCount(tp,LOCATION_MZONE)<=0 then return end
		Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
		Duel.SpecialSummon(Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.desfilter),tp,LOCATION_HAND+LOCATION_GRAVE,0,1,1,nil,e,tp),0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.ffilter(c,fc,sub,mg,sg)
	return c:IsFusionSetCard(0x7c4) and (not sg or sg:FilterCount(aux.TRUE,c)==0 or sg:IsExists(s.fcheck,1,c,c:GetAttack()))
end
function s.fcheck(c,atk)
	local dif=math.abs(c:GetAttack()-atk)
	return dif>0 and dif<=400
end
function s.disop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.SelectEffectYesNo(tp,e:GetOwner()) then
		Duel.Hint(HINT_CARD,0,id)
		Duel.NegateAttack()
	end
end
function s.tgfilter(c)
	return c:IsFaceup() and c:IsSetCard(0x7c4) and c:IsLevelBelow(5)
end
function s.tgcon(e)
	return Duel.IsExistingMatchingCard(s.tgfilter,e:GetHandlerPlayer(),LOCATION_MZONE,0,1,nil)
end
function s.etarget(e,re)
	local g=Duel.GetChainInfo(0,CHAININFO_TARGET_CARDS)
	return g and g:IsContains(e:GetHandler())
end
function s.filter(c,tp)
	return c:IsPreviousLocation(LOCATION_MZONE) and (c:IsPreviousPosition(POS_FACEUP) or c:GetPreviousControler()==tp) and c:IsPreviousSetCard(0x7c4)
end
function s.acop(e,tp,eg,ep,ev,re,r,rp)
	local ct=eg:FilterCount(s.filter,e:GetHandler(),tp)
	if ct>0 then e:GetHandler():AddCounter(0x921,ct,true) end
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return true end
	local sg=Duel.GetMatchingGroup(aux.TRUE,tp,0,LOCATION_MZONE,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,sg,#sg,0,0)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local sg=Duel.GetMatchingGroup(aux.TRUE,tp,0,LOCATION_MZONE,nil)
	Duel.Destroy(sg,REASON_EFFECT)
end