--created by Seth, coded by Lyris
--Great London Clue - Witnesses
local s,id,o=GetID()
function s.initial_effect(c)
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	c:RegisterEffect(e1)
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetRange(LOCATION_SZONE)
	e2:SHOPT()
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON+CATEGORY_GRAVE_SPSUMMON)
	e2:SetTarget(s.sptg)
	e2:SetOperation(s.spop)
	c:RegisterEffect(e2)
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_IGNITION)
	e3:SetRange(LOCATION_GRAVE)
	e3:SHOPT()
	e3:SetTarget(s.pltg)
	e3:SetOperation(s.plop)
	c:RegisterEffect(e3)
end
function s.filter(c,e,tp)
	return c:IsSetCard(0xd3f) and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)>0
		and Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		and Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_GRAVE+LOCATION_HAND,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_CARDTYPE)
	Duel.SetTargetParam(Duel.AnnounceType(tp))
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)<1 then return end
	Duel.ConfirmDecktop(tp,1)
	if not Duel.GetDecktopGroup(tp,1):GetFirst():IsType(1<<Duel.GetChainInfo(0,CHAININFO_TARGET_PARAM))
		or Duel.GetLocationCount(tp,LOCATION_MZONE)<1 then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local tc=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.filter),tp,LOCATION_GRAVE+LOCATION_HAND,0,1,1,nil,e,tp):GetFirst()
	if not tc then return end
	if Duel.SpecialSummonStep(tc,0,tp,tp,false,false,POS_FACEUP) then
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_UPDATE_ATTACK)
		e1:SetReset(RESET_EVENT+RESETS_STANDARD)
		e1:SetValue(300)
		tc:RegisterEffect(e1)
		local e2=e1:Clone()
		e2:SetCode(EFFECT_UPDATE_DEFENSE)
		tc:RegisterEffect(e2)
	end
	Duel.SpecialSummonComplete()
end
function s.pltg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)>0
		and Duel.GetLocationCount(tp,LOCATION_SZONE)>0 end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_CARDTYPE)
	Duel.SetTargetParam(Duel.AnnounceType(tp))
	Duel.SetOperationInfo(0,CATEGORY_LEAVE_GRAVE,e:GetHandler(),1,0,0)
end
function s.plop(e,tp,eg,ep,ev,re,r,rp)
	if Duel.GetFieldGroupCount(tp,LOCATION_DECK,0)<1 then return end
	Duel.ConfirmDecktop(tp,1)
	local c=e:GetHandler()
	if not Duel.GetDecktopGroup(tp,1):GetFirst():IsType(1<<Duel.GetChainInfo(0,CHAININFO_TARGET_PARAM)) or not c:IsRelateToEffect(e) then return end
	Duel.MoveToField(c,tp,tp,LOCATION_SZONE,POS_FACEUP,true)
end