>>23421803>>23421882>>23421899>>23421903>>23421918Stupid. Don't you understand that each pokemon is a whole? Sure, a good typing helps, but it is NEVER enough to infer if the pokemon itself is good or not, and how much.
Furthermore, as you can see easily in pic related, Dragon-Ice, Dragon-Rock and Dragon-Grass are all WORSE type combinations than pure Normal and pure Bug (which are both very common early game), and Dragon-Grass is even worse than pure Grass and pure Ice. I'm sorry anons, but that's mathematical.
FURTHERMORE, pic related is outdated: it was made before last Gen and introduction of Fairy type, which nerfs Dragon, meaning that today these types are even worse.
Now, if you want to make a bad pokemon, whether its types are good or not, it's very easy: use its stats, its movepool, and its ability. Even with a type combination such as Steel-Ghost you CAN make an extremely bad pokemon. Just have some good will, thank you.