A: This is hardly an unheard-of set.Gyarados @ Leftovers
Ability: Intimidate
EVs: 140 Atk / 36 Def / 144 SDef / 188 Spd
Jolly Nature
- Dragon Dance
- Substitute
- Earthquake
- Waterfall
I present to y'all, my monster. This guy is best used in rain, where you can power through resistances with double boosted waterfalls. Intimidate gives gyara extra bulk when switched in right and iss a good way to force switches for a free sub. Then, dragon dance to your hearts content It's built so you can outspeed the likes of jolteon and aerodactyl after a single dragon dance. I use the waterfall/eq combo mostly because i dont really need stone edge when i can blast through resistances in rain. Eq is sustitutable for stone edge, but i run eq to great success.
B: This is hardly a viable set in the generation AFTER perma-rain.
C: Practically every grass type resists both of these attacks. As does Rotom-W, who isn't exactly rare. As does every Dragon/Flying pokemon or Dragon levitator not named Flygon. As do other Gyaradoses who really enjoy the free setup.