Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Tribute 3 "Scareclaw" monsters; for the rest of this turn, your opponent can only Special Summon monsters in Defense Position. During your turn: You can banish this card from your GY; inflict 100 damage to your opponent for each Defense Position monster on the field. You can only use this effect of "Scareclaw Alternative" once per turn.
--肆世壊の継承
--Scareclaw Alternative
--scripted by pyrQ
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCost(s.cost)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	c:RegisterEffect(e1)
	--Damage
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_DAMAGE)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetCode(EVENT_FREE_CHAIN)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetCountLimit(1,id)
	e2:SetCondition(function(_,tp) return Duel.IsTurnPlayer(tp) end)
	e2:SetCost(Cost.SelfBanish)
	e2:SetTarget(s.damtg)
	e2:SetOperation(s.damop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_SCARECLAW}
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.CheckReleaseGroupCost(tp,Card.IsSetCard,3,false,nil,nil,SET_SCARECLAW) end
	local g=Duel.SelectReleaseGroupCost(tp,Card.IsSetCard,3,3,false,nil,nil,SET_SCARECLAW)
	Duel.Release(g,REASON_COST)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.GetFlagEffect(tp,id)==0 end
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	Duel.RegisterFlagEffect(tp,id,RESET_PHASE|PHASE_END,0,1)
	--Can only Special Summon in Defense Position
	local e1=Effect.CreateEffect(e:GetHandler())
	e1:SetDescription(aux.Stringid(id,2))
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_FORCE_SPSUMMON_POSITION)
	e1:SetProperty(EFFECT_FLAG_PLAYER_TARGET+EFFECT_FLAG_CLIENT_HINT)
	e1:SetTargetRange(0,1)
	e1:SetValue(POS_DEFENSE)
	e1:SetReset(RESET_PHASE|PHASE_END)
	Duel.RegisterEffect(e1,tp)
end
function s.damtg(e,tp,eg,ep,ev,re,r,rp,chk)
	local dg=Duel.GetMatchingGroup(Card.IsDefensePos,0,LOCATION_MZONE,LOCATION_MZONE,nil)
	if chk==0 then return #dg>0 end
	Duel.SetTargetPlayer(1-tp)
	Duel.SetOperationInfo(0,CATEGORY_DAMAGE,nil,0,1-tp,#dg*100)
end
function s.damop(e,tp,eg,ep,ev,re,r,rp)
	local dg=Duel.GetMatchingGroup(Card.IsDefensePos,0,LOCATION_MZONE,LOCATION_MZONE,nil)
	if #dg==0 then return end
	local p=Duel.GetChainInfo(0,CHAININFO_TARGET_PLAYER)
	Duel.Damage(p,#dg*100,REASON_EFFECT)
end