Drow Nobility and their Spells

[Mortalchuck]

I am currently GMing for a party of 5, and I have a Drow who was adopted by humans but took the Drow Nobility trait. As of that, he is able to use a number of abilities at will like Deeper Darkness, Faerie Fire, and others. I was wondering if these abilities are something like once a day? It seems a little bit absurd that a Drow who takes the nobility trait gets so many abilities because of that.

[Nothing]

What trait are you talking about? The Drow Nobility feat specifies exactly how often the spell like abilities it grants can be used.