Don't run 248 EVs on anything at lv50 since that gives the same final stat as 244 EVs, thereby wasting 4 EVs. You could probably get away with just having 252 in there but if you really want an odd number stick to 244
Heatran @ Leftovers
Ability: Flash Fire
EVs: 248 HP / 252 Spe / 8 SpA
- Earth Power / Protect / Stealth Rock
When I run Toxic, I face nothing but HO. When I run WoW, I face nothing but stall. Fuck it, let's run both!
I know that dual status sets are something of a relic, but I really like the role compression they offer to space-strapped BSS teams, and Heatran's prodigious typing, moveslot freedom and general Heatranness make it one of the top options. Not to mention the look on your opponent's face when you reveal Toxic, they think the coast is clear for their Garchomp or SD Lando, and they eat a burn on the switch. >P