I'd personally drop the silk scarf for a lum berry, gives you plenty more chances of setting up.
Edit: Also another really nice zard set.
Ability: 420blaze Item: Leftovers/Lum Berry Nature: Naughty/Lonely Ivs and Evs: 252 att and speed Moveset:
Swords Dance
Overheat
Earthquake
Thunderpunch
The idea is to setup on things that can't harm it too much, like arcanine, chansey and umbreon (especially arcanine which is very likely to come in to prevent a bdrum/sunny day sweep).
Thunderpunch is nice against gyarados, but it won't be too much of use against things such as slowbro at +2/4.
Overheat is still better compared to any other ph move, since it 1hkos anything it hits for supereffective damage anyway without the need of any setup whatsoever