Family Battler of Northrend

/way #117 28.6 33.8 Beegle Blastfuse
/way #115 59.0 77.0 Okrut Dragonwaste
/way #118 77.4 19.6 Major Payne
/way #127 50.2 59.0 Nearly Headless Jacob
/way #121 13.2 66.8 Gutretch

Dragonkin

For all EK, Kalimdor and Northrend Family Battlers - Dragonkin I used the same team

Nexus Whelpling (Frost Breath, Mana Surge, Arcane Storm)
Twilight Clutch Sister (Twilight Fire, Phase Shift, Twilight Meteorite)
Emerald Proto-Whelp (Emerald Bite, Emerald Presence, Emerald Dream)

Prioritize Arcane Storm > Mana Surge. When your Nexus Whelpling dies, bring out Twilight Clutch-Sister and use Twilight Fire until the enemy pet is below 50% and the Dragonkin passive is activated. Use Twilight Meteorite with the passive up. Clean up with Emerald Proto-Whelp.

Beast

For all EK, Kalimdor and Northrend Family Battlers - Beast I used the same team

Infernal Pyreclaw P/B (Adrenaline Rush, Cleave, Great Sting)
Zandalari Anklerender P/S (Bite, Primal Cry, Black Claw)
Tarachnid Stalker (or any Spider) S/S (strike, Brittle Webbing, Spiderling Swarm)

I kept Great Sting up as much as possible, spammed Cleave. If Pyreclaw died I brought in Ankle render and prioritized Primal Cry. I used Tarachnid Stalker / Spider to absorb high damage 2 round ability hits such as Fly, Burrow and Dragon Breaths as well as using Brittle Webbing + Spiderling Swarm together.