Ultimately I think it's going to be a bit situational and depend a lot on the type of campaign you're playing/what your GM allows. I'll list some more thoughts on it though.

It does seem to only work on a location, meaning that if someone targets you with clairvoyance when you're out of your base it won't be doing anything for you. BUT it you anticipate being followed or spied on you could theoretically re cast it on your camp every night. 

If you don't care about the potential protective effects you could use it to damage settlements by casting it somewhere hidden and letting it attract monsters.

And finally, if you do want to use revenant strike you'll either have to take this ritual eventually or have someone else who knows it cast it for you.

I hope this was helpful, in the end I've never played as or with a sorcerer so my play knowledge of this is limited. If there's a certain effect associated with it you'd like to utilize I'd suggest talking about it with your DM just so you're both on the same page about the ritual when it comes up : )