First of all, the deck is lacking mana. you will run into problems getting uril out and once he has got removed the first time, you're running into real trouble.
Then,
Replenish and
Enlightened Tutor feel like an overkill pricewise. Both are great without any doubt, but unless you've already got them, better spend the money on other cards like better
lands.
I've got a uril deck myself. It's a little outdated because I've become kinda lazy building, but you may find some interesting cards within:
https://deckstats.net/decks/112190/1054517-uril-the-miststalker/as a site note: on the first look I would cut aurelia and gisela for some other stuff that fits better to uril.