Strategy Help?

Alright, say I'm in a double battle. I've got Shuckle and Mr. Mime together. If my Shuckle uses Power Trick, and next turn my Mr. Mime uses Guard Swap on Shuckle, will Mr. Mime's transferred Defense stat replace Shuckle's new Defense, or transfer to Shuckle's Attack due to Power Trick?

Few more questions:

-Does Power Trick still affect a pokemon after its been switched out?
-Is Baton Pass based on speed, or is it a priority attack?
-Does Healing Wish fully recover the next pokemon that comes into play? If not, what is the percentage of HP it recovers?

EDIT:

-What ways are there to interrupt your own pokemon's Rollout in a double battle?

When Mr. Mime uses Guard Swap on Shuckle after it Power Swaps, it gains the Defense that Shuckle has, I think. So after Power Swap and it might have 39 Defense, then Mr. Mime's defense after Guard Swap would be 39, I think. Not sure, though.

I can answer the other questions, though:
1) No
2) Baton Pass is based on speed. Not a priority.
3) Healing Wish and Lunar Dance recovers all HP and the Status of the next Pokemon that comes into play.

Alright, so if my Mr. Mime had 200 Defense, it would replace the 70 Defense stat that Shuckle has, not the 600 Attack stat he gets from Power Trick?

I think it would replace the 70 defense, not the attack. If you want, you could ask Smogon about this. They would probably answer it correctly.

Alright, good. I'll have to test that. Thanks.

Oh, and Skill Swap wears off when the pokemon is switched out, right?

I believe as long as the opponent remains out, they will have their ability changed to whatever you changed it to.

Your pokémon on the other hand would have it's ability reset if you switched it out/in.

Alright, good.