I would like to

a) Give the Razor Claw to my Sneasel.

b) give said Sneasel a Rare Candy.

I'm sure you can see where this is going...

c) What? Sneasel is evolving! Ayup, it's nighttime, and I believe I've covered all of the requirements...

Done-d. Enjoy your new Weavile. Also, I just hurt my pinky. ;_; (What relevance does this have on you? I have no idea whatsoever.)