100 power (Edge) vs 75 power (Slide) vs 60 power (Tomb)
Who cares about PP when you'll (Generally) only get to use 2 moves after a Stealth Rock, anyway?

Wait, who set the Stealth Rock?
Brynhildr holds an Assault Vest, which doubles the Spe.Defense stat while inhibiting the use of Status Moves. I need another Physical Move.

Also, it the PP Up frowned upon?

I thought you were the one who was training the Stealth Rock Mamoswine. *Shrugs*

And it's not. I'm just saying that an attack with a PP of 5 really doesn't hinder it unless you're against a Pressure user.

I was. But I have, like 4 other Swinubs with Stealth Rock, Ancient Power, and Icicle Crash. All named after figures in Norse Mythology!:D
Brynhildr was going to hold a Life Orb originally, but then the Assault Vest happened and the prospect of her Special Defence of 60 getting doubled? Screw Entry Hazard setting! :lol

So do you use PP Up?

Nope. :p
I try to keep a revolving door of Pokemon so that teams don't get stale and battling me is almost always different.

There were Pokemon that could make good use of them, but I don't use them enough to justify getting it.

Training up a new Mega Pokemon. Its identity will be concealed until it's ready.

I'm thinking of training up a Dusclops, but I have no motivation to do so.

My mega is finally finished!

What would be a less than popular Pokemon to train up?

Walrein, Marowak, Mandibuzz, Golem, Rhyperior, Granbull, Victreebel, Xatu.