Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
If you control a "Blackwing" monster other than "Blackwing - Bora the Spear", you can Special Summon this card (from your hand). If this card attacks a Defense Position monster, inflict piercing battle damage.
--BF－黒槍のブラスト
--Blackwing - Bora the Spear
local s,id=GetID()
function s.initial_effect(c)
	--special summon
	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(s.spcon)
	c:RegisterEffect(e1)
	--pierce
	local e2=Effect.CreateEffect(c)
	e2:SetType(EFFECT_TYPE_SINGLE)
	e2:SetCode(EFFECT_PIERCE)
	c:RegisterEffect(e2)
end
s.listed_series={SET_BLACKWING}
function s.filter(c)
	return c:IsFaceup() and c:IsSetCard(SET_BLACKWING) and c:GetCode()~=id
end
function s.spcon(e,c)
	if c==nil then return true end
	return Duel.GetLocationCount(c:GetControler(),LOCATION_MZONE)>0 and
		Duel.IsExistingMatchingCard(s.filter,c:GetControler(),LOCATION_MZONE,0,1,nil)
end