This flying pet has 4000 hp. The basic strategy is to use one pet to get him under 2000 hp and then to use the Pandaren Water Spirit/Chrominius Howl Bomb strategy to finish him off. I use the Emerald Proto-Whelp in slot one. He can get Quintessence under 1000 hp (sometimes can even solo it). After he dies, switch to Pandaren Water Spirit and do Geyser first round and Whirlpool on the next. Switch to Chrominius and do Howl on first round. If Quintessence doesn’t die from the Howl, the Surge of Power skill will finish it off on the next attack.