sucker punch/ pursuit is a pretty win on the same set because it traps pokemon like gengar and azelf. they have to predict perfectly or die. you could even play the rash one like that;
Houndoom @ choice scarf/ life orb
Rash/ 252 speed/ 252 sp att/ 4 att
Pursuit/ sucker punch/ fire blast/ [hidden power ground/ fighting/ grass]
feel free to tweak the evs. more att might be required to ohko certain targets, depending on what you decide you want to kill. in OU, your main targets are azelf, gengar, and starmie. even bulkier targets like cresselia, dusknoir and celebi will hate it. in UU, every psychic type except slowbro will hate this set. the hidden power is up to you (and honestly, how long you feel like breeding for.)
damn. i should join CQ