Yeah, if I were you, I'd have a lot of regrets.

[It'd be like bringing Doom Boner into a fight. He'd just lie there, burping smoke and being useless. He loves that friggin puppy, but he's the most useless puppy in Pokedom.]

Take it from me, you got a useless battle Pokemon, don't bother. They're gonna be happier, you're gonna be happier...