For the record, these are the types we haven't had yet. Fire/Electric
Heat Rotom
Water/Bug
Surskit
Grass/Electric
Mow Rotom
Electric/Ice
Frost Rotom
Rock/Fighting
Terrakion
Ground/Poison
Nidoqueen and Nidoking
Ground/Bug
Nincada
Ground/Ice
The Swinub family
Rotom is a special pokemon. I was referring to a separate pokemon.
Nincada and Surskit I already know about, but if you try to use them to battle you would get destroyed. I meant that we need a final evolution that's Bug/Water, Bug/Ground.