Triads, triads, come and get yer triads!
Sully, the bumblingest world-class espionage agent, brings undead Socks, critter Monte and aquatic Rikki to the table. All 3 of his pets have cross-family abilities.
Socks is probably the trickiest, because while he has Infected Claw, he also has regular Claw, making him a powerhouse against the critter you probably picked to beat him. As a result, you’ll want to pick a pet in an off-family with critter offense. I had good luck with a Mei Li Sparkler with Scratch and Swarm, with Cocoon in the middle slot, and a frog using Tongue Lash and Swarm of Flies. Both are in a defending family for one of Socks’ attacks. I give the Sparkler a slight edge though, because with Cocoon, it can dodge Socks’ last attack, Unholy Ascension. Your back line will still get the debuff, but hey.
For Monte, I usually just toss in that Cat I used in the other 2 triads. Oddly, Monte has all beast attacks with Huge, Sharp Teeth!, Vicious Strength and the combo attack/evasion ability Burrow. As long as you don’t use your Prowl buffed ability while he’s underground, you should be able to all but one-shot Monte. If you don’t have a cat, another pet with strong beast offense should work just as well.
Rikki, the mongoose I’m just assuming totally beat the crap out of a family of cobras, has all beast offense. He uses Gnaw and Bloodfang, so you need to watch out for heals. He also uses Cute Face, so you should save your long cooldown big hits for when that drops off. The ideal match here would probably be a Crow or Gilnean Raven, but if you want to save yours for another fight, nearly any flier will work here. I like the Kaliri Hatchling, or the Dragonbone Hatchling, but I used the uncommon Cockatiel with no issue, too.
Hold on to your butts, because the next tamer we fight is Dr. Ion Goldbloom. His 3 pets are the flying Screamer, Beast Trike, and Magic Chaos.
He always starts off with Screamer, but Screamer won’t be killed straight away, because he uses the Feign Death ability. Both his offensive abilities are Flying, but one of those two is Lift-off, with the additional evasion component. He’ll also use Alpha Strike, and at 380 speed he’s going to be faster than your pet unless you debuff him. Because of the Flying of it all, I liked using the Emerald Whelpling with the magic abilities in the first two slots. You need a good amount of longevity with this pet. A Nether Faerie or Sprite Darter works here too, but isn’t quite as sturdy as the Emerald Whelpling.
When Screamer swaps out with Feign Death, Trike will come in, and you’ll want to swap to a mechanical. He uses all Beast offense with Bite, Adrenaline Rush and Horn Attack. Almost any mechanical works out alright, excepting pets like the Lifelike Mechanical Toad, which has nearly no Mechanical offense. Using a Son of Animus here makes the whole fight rather trivial, to the extent that I was able to pretty much duo it with the Whelpling, but again with the Celestial Tournament being about triage and choice… I like having Animus for a later fight, because he’s such a strong pet. Like I said though nearly any ‘extra’ mechanical you have kicking around works here.
Chaos can be really wonky. Neither of its 2 offensive moves are Magic, and it uses the new ability Uncertainty, which increases its crit chance by 50%, but decreases its chance to hit by 25%. His offense is the Dragonkin ability Instability, and the new Humanoid ability Logic, which is a straightforward nuke. I had an easy time with both the Nether Ray Fry (Flying), the Scourged Whelpling and the Mechanical Pandaren Dragonling, though I lean toward the Nether Ray or Scourged Whelpling, because Chaos is super fast so your Tail Sweep will hit twice.
Whenever Screamer swaps out I swap the Emerald Whelpling back in, and eventually all his pets will die. His dinosaurs had their shot, and I selected them for extinction.
The last tamer, Lorewalker Cho, uses Flying Wisdom, Magic Patience and Knowledge, a Dragon. And of course, they also use off-breed abilities.
Wisdom uses the Beast damage over time spell Rip to great effect with the debuff Wild Magic, and rounds it out with Peck. I had really good luck here using a Coilfang Stalker with Illusionary Barrier. My personal choice is probably going to be the Lesser Voidcaller, because he was fairly key in the first couple triads and we haven’t used him yet this triad, so I might as well re-use him. He’ll use his magic moves, including his own shield, Prismatic Barrier.
After Wisdom is Patience, the broom. It has a heal in Tranquility, and the magic nuke and barrier-clearing Clean-Up, with the humanoid ability Broom. So, like Chaos, we need a dragon nuker that isn’t a dragon. Since Patience is super slow, I’d recommend trying the Mechanical Dragonling, since his Breath isn’t affected by speed, but the Nether Ray and Scourged Whelp’s Tail Swipe is at a disadvantage if it goes first.
Last up is Knowledge, the dragonkin. He uses Tail Sweep, and is very slow at 244 speed, so he’s probably going to get to use both hits of that the whole time. He also has Amplify Magic and fairly crazy elemental nuke Solar Beam (especially combined with that Amplify). I had a hard time figuring out when Knowledge will use Solar Beam, which is kind of a big deal here. As a result my most foolproof strategy was to use the Anubisath and use Deflect on cooldown until he uses it, then count out every 5 rounds when it’s off cooldown and use it again then. In rounds where he didn’t cast Solar Beam, it was really easy to cream him with pretty much any humanoid.
Leveling Worksheet (italics means they’re used in a different triad, updated as strategies progress): Non-critter with Critter offense, a beast damage pet (preferably a Prowl or other combo pet), a pet with strong flying offense, Emerald Whelpling or Nether Faerie Dragon, Mechanical Pandaren Dragonling, Scourged Whelpling, a Mechanical, Lesser Voidcaller, Anubisath Idol.