Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Banish all Spell Cards from your Graveyard; destroy all face-up monsters your opponent controls with DEF less than or equal to the number of Spell Cards you banished x 300.
--暴走する魔力
--That Wacky Magic!
local s,id=GetID()
function s.initial_effect(c)
	--Activate
	local e1=Effect.CreateEffect(c)
	e1:SetCategory(CATEGORY_DESTROY)
	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)
end
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	e:SetLabel(1)
	return true
end
function s.cfilter(c)
	return c:IsSpell() and c:IsAbleToRemove()
end
function s.filter(c,def)
	return c:IsFaceup() and c:IsDefenseBelow(def)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		if e:GetLabel()~=1 then return false end
		e:SetLabel(0)
		local ct=Duel.GetMatchingGroupCount(s.cfilter,tp,LOCATION_GRAVE,0,nil)
		return Duel.IsExistingMatchingCard(s.filter,tp,0,LOCATION_MZONE,1,nil,ct*300)
	end
	local g=Duel.GetMatchingGroup(s.cfilter,tp,LOCATION_GRAVE,0,nil)
	Duel.Remove(g,POS_FACEUP,REASON_COST)
	e:SetLabel(#g*300)
	local sg=Duel.GetMatchingGroup(s.filter,tp,0,LOCATION_MZONE,nil,#g*300)
	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(s.filter,tp,0,LOCATION_MZONE,nil,e:GetLabel())
	Duel.Destroy(sg,REASON_EFFECT)
end