>>31413569Yes and no.
For Stall Shuckle, it won't have to rely on Contrary+Shell Smash to boost its defense at the expense of everything else.
Power Trick Shuckle will just not as terribad defense after the trick (though it'd still be pretty bad).
If doubles, it doesn't affect Guard Split.
All-in-all, it doesn't seem that bad. It's basically a less potent Contrary+Shell Smash without the drawbacks when not in the rain. And even in the rain, it doesn't make up for the tiny amount of HP that it has, nor make up for the fact its only recovery is Rest.
Also, Shuckle is weak to water. If you keep it out in the rain, you're asking to be hit by a water type move before you can do something.
Honestly, the only poke to reap all the benefits would be a Blastoise with Rain Dish. I would argue Torterra as well, but the rain screws over synthesis.
