Just a thought...

[napoleon_mumbo]

   I've been thinking about this for quite a while but only recently have i thought of a possible solution to shedinja's low hp problem and its marvelous ability 'wonder guard'. I'm not sure if this would work and i still need to test it, however what would happen if you took a pokemon that had few or no weaknesses (like spiritomb or sableye), taught it skill swap, went into a double battle with shedinja and your other pokemon of choice and then used skill swap on shedinja. In theory the stronger pokemon would gain the ability of taking no damage unless the damage is super effective, condition damage or weather damage, this would mean that you have to sacrifice the poor shedinja however you'd also have a practically invincible pokemon, especially if it was a pokemon like electivire.

If someone gets to test this before me then please drop a message on how well it works, im not sure if skill swap is a move that you can use on an ally however if it was then im sure someone would've realised it by now, still, we live in hope and it's worth a shot.