Thank you for the first actual rate in like two pages of this thread.
I used to run a Jellicent that had Taunt, but in the end I opted against using him becaus ehe just opened up my Breloom weakness even more. Also as the whole point of the team is to spread status, and while admittedely with the right setup Unbreon could give me a few issues, overall I have not had many problems dispatching him with too much damage done. However I will keep him in mind, along with a Heal Bell user, which would be nice.
As far as Guts users, I don't have a problem if I use Sigilyph, as they become set up fodder for her (Conkeldurr with Guts on fails to OHKO with Payback, while I can set up Cosmic Powers, outspeed and Roost off damage, and after just one Cosmic Power Conkeldurr can't even guarantee a 2HKO)
You do however bring up a good point in Cloyster, and I have been looking to toss on a Choiced Pokemon over a set up, which will give me more immediate power. I might try out CB Mamoswine for the hell of it, I'll give it a few play tests.
Once again thank you for the rate, it's posts like yours that make me believe this community isn't completely dead