Would a Venusaur with Outrage be an appropriate dragon counter? It learns it Gen IV, and would likely be it's only physical attack(with a neutral nature, no investment and leftovers so no outside boost), but it's for a mono-grass team with no ice attacks, so my only other way to handle dragons so far is just rocks everywhere, as most of them fly.
My other option would be Tropius, who is just a train wreck, but I could really, REALLY use a good flying-type attack on my team, and don't have many other options I've noticed - but the best I can come up with for him is a Lum/Rest harvest build, or a Sunny Day/Growth/Outrage/AirSlash build, that could totally work, provided I get an extremely unlikely chance to set up BOTH sun and growth. Otherwise, I feel like his "bulk" just isn't enough to pull through for me, and I'm very dismayed that GameFreak finds it okay to nurf EVERY grass-type's speed by justifying it with Chlorophyll, as if Grass didn't have enough problems to begin with (grass types don't even have any good Fire moves available to them to use in Sunny Day).