>>16578729Look for things in the "Monster" egg group. Aggron, Nidoking, Tyranitar...
Also, Dragon-types.
But Fighting/Ghost is 100% perfect coverage. Add something to hit Water- and Flying-types, like the celebrated BoltBeam combo, and you'll do rather well.
>>16579055Grass Knot gets boosts by Tough Claws, since it makes contact. If Barbaracle is having trouble with bulky Water-types, it's actually not quite as shitty a choice as you'd think.
>>16579516Doesn't Togekiss get Ice Punch? Also, Giratina has Ghost moves, Aura Sphere, Aerial Ace, and Icy Wind.