--スレッショルド・ボーグ
function c31944175.initial_effect(c)
	--spsummon
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_SPSUMMON_PROC)
	e1:SetProperty(EFFECT_FLAG_UNCOPYABLE)
	e1:SetRange(LOCATION_HAND)
	e1:SetCondition(c31944175.spcon)
	e1:SetTarget(c31944175.sptg)
	e1:SetOperation(c31944175.spop)
	c:RegisterEffect(e1)
	--atk down
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_FIELD)
	e2:SetCode(EFFECT_UPDATE_ATTACK)
	e2:SetRange(LOCATION_MZONE)
	e2:SetTargetRange(0,LOCATION_MZONE)
	e2:SetValue(-500)
	c:RegisterEffect(e2)
end
function c31944175.cfilter(c)
	return c:IsType(TYPE_MONSTER) and c:IsRace(RACE_CYBERSE) and c:IsDiscardable()
end
function c31944175.spcon(e,c)
	if c==nil then return true end
	local tp=c:GetControler()
	return Duel.GetLocationCount(tp,LOCATION_MZONE)>0 and Duel.GetFieldGroupCount(tp,LOCATION_MZONE,0)==0
		and Duel.IsExistingMatchingCard(c31944175.cfilter,tp,LOCATION_HAND,0,1,c)
end
function c31944175.sptg(e,tp,eg,ep,ev,re,r,rp,chk,c)
	local g=Duel.GetMatchingGroup(c31944175.cfilter,tp,LOCATION_HAND,0,c)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DISCARD)
	local tc=g:SelectUnselect(nil,tp,false,true,1,1)
	if tc then
		e:SetLabelObject(tc)
		return true
	else return false end
end
function c31944175.spop(e,tp,eg,ep,ev,re,r,rp,c)
	local g=e:GetLabelObject()
	Duel.SendtoGrave(g,REASON_SPSUMMON+REASON_DISCARD)
end
