That was a typo on the dragonite, it actually is modest....i run ice beam for dragons cause normally its 4x effective vs most. But dragon pulse would have better coverage, and is still super effective vs dragons...not sure.
i will only criticize the Dragonite. Please, dont offend, but it is a total fail (no offense again).
first, you got it Adamant, but you are runnng Sp. attack moves anyway? well, that isnt so smart. In case you want to keep that moveset, breed a Modest one.
The OP mentioned above that it was a typo, for the record.
@ canadianalbanian - Remember to edit the original post to keep any changes/mistakes updated, so people do have to read through the whole thread and know where you're up to.
Everyone has covered most things pretty well. Heatran is a big problem in the sun - not only because of the Fire/Water modifiers, but because it pretty much walls your Dragonite, outspeeds Donphan and can OHKO it with Fire Blast (if Sturdy is undone by entry hazards, etc)(even if you change to the 252 HP set, which is strongly recommended) and Leafeon has no hope. As D_A mentioned, Sawsbuck can outspeed (sun or otherwise) and hit Heatran with Nature Power (EQ), while outclassing Leafeon completely. And oddly enough, Mamoswine has a higher base speed than Heatran (80 vs 77), so a Jolly Mamo would outspeed and OHKO (hell, Max speed Heatrans are so rare now that you could probably get away with Adamant just fine. Keep in mind Air Balloon is going to be an issue if it comes in unscathed, but if both Sawsbuck and Mamo can hit it, you should be okay. Mamoswine is also immune to Hail and SS, as well. It doesn't take the same physical hits that Donphan can, but if you can find a Thick Fat variant, it will help. Donphan's not taking too many boosted Physical hits, anyway.