Well, there's no dry yeast out there for making a Kolsch. I wouldn't say that's a terribly exotic beer.
maybe someday Fermentis will make a dry yeast for every strain out there.
Though I'm not sure you can get brett or lacto in a dry form since they're bacteria.
K-97 is supposed to be a kolsch yeast, and I'm going to try it in an oktoberfest and a munich smash soon. We'll see how it does.
Also, brett is a yeast, or have I lost my mind?