Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
During your Main Phase, you can Tribute Summon 1 Spellcaster monster in Attack Position, in addition to your Normal Summon/Set. (You can only gain this effect once per turn.) If this card is sent from the field to the GY: You can add 1 Spellcaster Normal Monster from your Deck or GY to your hand. You can only use this effect of "Legion the Fiend Jester" once per turn.
--魔道化リジョン
--Legion the Fiend Jester
local s,id=GetID()
function s.initial_effect(c)
	--extra summon
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetType(EFFECT_TYPE_FIELD)
	e1:SetCode(EFFECT_EXTRA_SUMMON_COUNT)
	e1:SetRange(LOCATION_MZONE)
	e1:SetTargetRange(LOCATION_HAND,0)
	e1:SetTarget(aux.TargetBoolFunction(Card.IsRace,RACE_SPELLCASTER))
	e1:SetValue(0x1)
	c:RegisterEffect(e1)
	--to hand
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOHAND+CATEGORY_SEARCH)
	e2:SetType(EFFECT_TYPE_SINGLE+EFFECT_TYPE_TRIGGER_O)
	e2:SetProperty(EFFECT_FLAG_DAMAGE_STEP+EFFECT_FLAG_DELAY)
	e2:SetCode(EVENT_TO_GRAVE)
	e2:SetCountLimit(1,id)
	e2:SetCondition(s.thcon)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
end
function s.thcon(e,tp,eg,ep,ev,re,r,rp)
	return e:GetHandler():IsPreviousLocation(LOCATION_ONFIELD)
end
function s.filter(c)
	return c:IsType(TYPE_NORMAL) and c:IsRace(RACE_SPELLCASTER) and c:IsAbleToHand()
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then return Duel.IsExistingMatchingCard(s.filter,tp,LOCATION_DECK|LOCATION_GRAVE,0,1,nil) end
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,nil,1,tp,LOCATION_DECK|LOCATION_GRAVE)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_ATOHAND)
	local g=Duel.SelectMatchingCard(tp,aux.NecroValleyFilter(s.filter),tp,LOCATION_DECK|LOCATION_GRAVE,0,1,1,nil)
	if #g>0 then
		Duel.SendtoHand(g,nil,REASON_EFFECT)
		Duel.ConfirmCards(1-tp,g)
	end
end