More Miscellaneous suggestions:
Zekrom with Earthquake, Superpower, Self-Destruct, Explosion, Brick Break, Hammer Arm, Flamethrower, Body Purge/Rock Polish, Trick Room, Roar, Doom Desire, Iron Head, Drill Liner, Gravity, Iron Defense, Recover, Focus Punch, Counter, Heavy Bomber, and Bulk Up.
Reshiram with Psychic, Psycho Shock, Extrasensory, Future Sight, Windstorm, Tailwind, Air Slash, Sky Attack, Thunderbolt, Roost, Earth Power, Mirror Coat, Featherdance, and Whirlwind
Re-Typings: Shibirudon as a WATER/Electric. (I seriously think they made some sort of programming error here, it's just so blatantly obvious. It would make Shibirudon much a much better Pokemon, too.
Also, Desukan as a Ghost/Steel with Levitate (Ghost/Rock works ok too). Arguably the best defensive typing in the game with that combo, and it makes more sense asthetically as well.