Another team that worked for me without any rng was
Death Talon Whelpguard (Rare breed destruction) 222 , Unborn Valkyr (Rare balance) 121, Zandalari Anklerender ( Rare power & Speed) 212.
Start off with Death Talon Whelpguard use any ability since the enemy will go first anyways. Valkyr will be swapped in. Use Curse of Doom and then Haunt. Choose Death Talon Whelpguard again and use any ability since enemy will go first and swap it out anyways with your Zandalari Anklerender. Use Black Claw first (you'll go first) and then use Hunting Party.
The damage from hunting party alone will cause the dots already on enemy to do massive damage and you will finish the enemy off.
NOTE: Any pet will work in pet #1's place as long as it doesn't take increased damage from Enemy type. Pet 1 is only used to take damage from Void Gate and be a swap dummy.
Followed wowhead post from Alfa: A Cogblade Raptor S/S breed, a Chicken with Flock, a Zandalari Anklerender. Start with Codblade's Exposed Wounds. Your chicken will swap in, use Flock, it will end up dying and your ZA will come in. Use Leap x2/Hunting Party. Actually died after first Hunting Party for me.
Used a team of a Cogblade Raptor, Dusk Spiderling, and Auburn Ringtail, all were faster than 292. Opened with Exposed wounds, then got swapped to Dusk. Used Brittle Webbing and then Spiderling Swarm, followed up with Poison Spit until death. Ringtail swapped in with Tongue Lash until voided, and then Cogblade ended with just Batter, though Exposed Wounds may have helped.