Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Remove Spell Counters from your field to activate 1 of these effects. ● 2: Return 1 "Mythical Beast" Pendulum Monster you control to the hand. ● 4: Special Summon 1 face-up "Mythical Beast" Pendulum Monster from your Extra Deck, then you can place 2 Spell Counters on it. ● 6: Special Summon 1 face-up Pendulum Monster from your Extra Deck. You can only activate 1 "Beast Magic Attack" per turn.
--獣・魔・導
--Beast Magic Attack
--Scripted by Eerie Code
local s,id=GetID()
function s.initial_effect(c)
	--to hand
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_TOHAND)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetLabel(2)
	e1:SetCost(s.cost)
	e1:SetTarget(s.thtg)
	e1:SetOperation(s.thop)
	c:RegisterEffect(e1)
	--spsummon (mythical)
	local e2=e1:Clone()
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e2:SetLabel(4)
	e2:SetTarget(s.sptg1)
	e2:SetOperation(s.spop1)
	c:RegisterEffect(e2)
	--spsummon (generic)
	local e3=e2:Clone()
	e3:SetDescription(aux.Stringid(id,2))
	e3:SetLabel(6)
	e3:SetTarget(s.sptg2)
	e3:SetOperation(s.spop2)
	c:RegisterEffect(e3)
end
s.counter_place_list={COUNTER_SPELL}
s.listed_series={SET_MYTHICAL_BEAST}
function s.cost(e,tp,eg,ep,ev,re,r,rp,chk)
	local ct=e:GetLabel()
	if chk==0 then return Duel.IsCanRemoveCounter(tp,1,0,COUNTER_SPELL,ct,REASON_COST) end
	Duel.Hint(HINT_OPSELECTED,1-tp,e:GetDescription())
	Duel.RemoveCounter(tp,1,0,COUNTER_SPELL,ct,REASON_COST)
end
function s.thfilter(c)
	return c:IsFaceup() and c:IsSetCard(SET_MYTHICAL_BEAST) and c:IsType(TYPE_PENDULUM) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.thfilter,tp,LOCATION_MZONE,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,0,tp,LOCATION_MZONE)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RTOHAND)
	local g=Duel.SelectMatchingCard(tp,s.thfilter,tp,LOCATION_MZONE,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
	end
end
function s.spfilter1(c,e,tp,rp)
	return c:IsFaceup() and c:IsSetCard(SET_MYTHICAL_BEAST) and c:IsType(TYPE_PENDULUM) and Duel.GetLocationCountFromEx(tp,rp,nil,c)>0 and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg1(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.spfilter1,tp,LOCATION_EXTRA,0,1,nil,e,tp,rp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_EXTRA)
end
function s.spop1(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local tc=Duel.SelectMatchingCard(tp,s.spfilter1,tp,LOCATION_EXTRA,0,1,1,nil,e,tp,rp):GetFirst()
	if tc and Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)~=0 then
		if tc:IsCanAddCounter(COUNTER_SPELL,2) and Duel.SelectYesNo(tp,aux.Stringid(id,3)) then
			tc:AddCounter(COUNTER_SPELL,2)
		end
	end
end
function s.spfilter2(c,e,tp,rp)
	return c:IsFaceup() and c:IsType(TYPE_PENDULUM) and Duel.GetLocationCountFromEx(tp,rp,nil,c)>0 and c:IsCanBeSpecialSummoned(e,0,tp,false,false)
end
function s.sptg2(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.spfilter2,tp,LOCATION_EXTRA,0,1,nil,e,tp,rp) end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_EXTRA)
end
function s.spop2(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local tc=Duel.SelectMatchingCard(tp,s.spfilter2,tp,LOCATION_EXTRA,0,1,1,nil,e,tp,rp):GetFirst()
	if tc then 
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end