Yea, like a Dragon/Fire-Type, which is and obvious Type Combo... At least one would think... There is no Dragon/Fire-Type (Charizard is a s close as it gets.)
Whilst still speaking of the Dragon-Type, I'd like to see:
-Grass/Dragon) think of 4x ice damage again
-Electric/Dragon) as long as it has levitate it will pwn
Other desire Pokemon Type Combos:
-Grass/Ghost (Spiritual Manifestation of Nature? Ent-Like?)mabye a sudowoodo evo.
-Grass/Fire (Idk...)burning bush(bible reference lol)
-Fire/Ghost (Soul Flame)