why would you want to swagger foul play, anything with physical attacks on its set (everything) will kill it, it doesn't have thunder wave to stack chance against you moving.
run Recover, WoW, Taunt, Snarl. If you are at 100% health you can take, for example, a Dazzling Gleam from Gengar, losing ~73% health, snarl, and then Gengar is doing less than recover heals with the spec attack drop, you are able to heal until you are safe and then snarl again. Your snarls 3 hit KO gengar so he is forced to switch out, if you smell a switch coming then burn. If you are at decent health, WoW and then stall out the physical attacker because his attack is shit. The only tricky part is knowing whether to WoW first or Taunt first in case the enemy attacker is a booster and wants to boost in your face, but even at +2 my sableye can take almost any physical hit if I burn the enemy. The only thing that kills it is fairy attacks or extremely strong specs draco meteor, shit like that. Otherwise it recovers and trolls you.