Well I have played Gold enough to know a few of the less talented pokemon. My first and foremost has to be Jumpluff. It's move pool is not very good. It's stats are fairly low and it is a grass/flying making it weak to fire, ice and poison, which are some of the more common moves. It gets outsped by most other pokemon and is a real pain to train. I still like Jumpluff for it's cute design but as a competitive pokemon you can do much better and only a little worse with a different selection. So far as I can tell the best moveset this pokemon gets is giga drain, toxic/poisonpowder, synthisis and leech seed.