Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Target 1 "Crusadia" monster you control; that "Crusadia" monster is unaffected by card effects this turn, except its own. You can only activate 1 "Crusadia Power" per turn.
--オーバード・パラディオン
--Crusadia Power
local s,id=GetID()
function s.initial_effect(c)
	--Targeted "Crusadia" monster becomes unaffected by other card effects
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetCountLimit(1,id,EFFECT_COUNT_CODE_OATH)
	e1:SetTarget(s.target)
	e1:SetOperation(s.activate)
	e1:SetHintTiming(0,TIMING_END_PHASE)
	c:RegisterEffect(e1)
end
s.listed_series={SET_CRUSADIA}
function s.filter(c)
	return c:IsFaceup() and c:IsSetCard(SET_CRUSADIA)
end
function s.target(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and s.filter(chkc) end
	if chk==0 then return Duel.IsExistingTarget(s.filter,tp,LOCATION_MZONE,0,1,nil) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	Duel.SelectTarget(tp,s.filter,tp,LOCATION_MZONE,0,1,1,nil)
end
function s.activate(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if tc:IsFaceup() and tc:IsRelateToEffect(e) then
		--Unaffected by other card effects
		local e1=Effect.CreateEffect(e:GetHandler())
		e1:SetDescription(3100)
		e1:SetProperty(EFFECT_FLAG_CLIENT_HINT)
		e1:SetType(EFFECT_TYPE_SINGLE)
		e1:SetCode(EFFECT_IMMUNE_EFFECT)
		e1:SetValue(s.efilter)
		e1:SetReset(RESETS_STANDARD_PHASE_END)
		tc:RegisterEffect(e1)
	end
end
function s.efilter(e,re)
	return e:GetHandler()~=re:GetOwner()
end