Here's what worked for me:
Gargra, Frostfire Ridge: I used a Fluxfire Feline (S/S) and Mechanical Squirrel (S/B) for this since her set up is three wolf pups. The Fluxfire is set up with Pounce, Flux, and Supercharge; I started with it for some backline damage. Once it dies, the Mechanical Squirrel (Metal Fist, Overtune, and Wind-Up) can take out the other one/two left.
Cymre Brightblade, Gorgrond: Cymre took some work to figure out; she's got magic, undead, and mechanical pets. Ultimately I ended up using the Anubisath Idol (H/H) with Crush, Stoneskin, and Deflection, paired with the Infinite Whelpling (P/P) with Tail Sweep, Healing Flame, and Early Advantage. These two are actually one of my go-to pairs for working with carry pets, but I hadn't used them in a while. Deflection has to be paired up opposite the Idol of Decay's Rot for this to work.
Tarr the Terrible, Nagrand: Okay, so I hadn't actually beaten Tarr before I tried this, and doing it straight up with the Elekk Plushie took some work. He's got three humanoids (murlocs), so I went with double undead pets: a Ghostly Skull (H/P) with Shadow Slash, Ghostly Bite, and Siphon Life, and a Scourged Whelpling (P/S) with Shadowflame, Death and Decay, and Plagued Blood. I opened with the whelpling, made sure to keep Death and Decay up (including refreshing it before he died), and finished them off with the skull. There's some RNG involved in this combination, but it will be really close even when it fails. (If I bump my whelpling from uncommon up to rare, it might be more consistent.)
Ashlei, Shadowmoon Valley: She's got an Elekk Plushie slotted - how hard can she be?! Anywho, her other pets are magic and beast, so I used the Emerald Proto-Whelp (P/P) with Emerald Bite, Ancient Blessing, and Proto-Strike and the Mechanical Squirrel (same set-up as for Gargra). The Emerald Proto-Whelp will almost solo this.
Vesharr, Spires of Arak: Vesharr has two flying pets and a mechanical that will briefly masquerade as a flyer. I went with a Sprite Darter Hatchling (S/S) with Arcane Blast, Life Exchange, and Moonfire and a Crimson Geode (H/S) with Feedback, Amplify Magic, and Stone Rush. I originally decided to level the geode because I've always found the Deepholm tamer annoying to beat, and it paid off for this.
Taralune, Talador: Taralune has the standard Draenei pets, three moths. I had good luck with a Disgusting Oozeling (H/B) with Ooze Touch, Corrosion, and Expunge opening for the Sprite Darter Hatchling. The sprite darter's Moonfire will negate the Call Lightning, which can be really bad with Moth Balls.
Bonus: Darkmoon Faire
I did both Darkmoon Faire tamers with the Elekk this week, too. For Jeremy, with his magic/mechanical/beast team, I just used my regular Infinite Whelpling (same set-up as for Cymre) and Water Waveling (B/B - Ice Lance, Frost Nova, Geyser) set up and substituted the Elekk in for the Mechanical Squirrel, which is normally my third. When the RNG is in your favor, the Infinite Whelpling will solo the first two pets, and eat the monkey's initial stun, and then the waveling can finish him off. One of the keys is hitting the tonk with Early Advantage with the dragon buff, so you might need to pass a round (or heal or something) on the eye to get it active for the tonk.
Christoph took some experimentation to figure out. He's got that initial fast magic pet with both a hard-hitting geyser and an attack-blocking bubble, and the obvious counter is a dragon - but which one? It turns out the Silver Dragonhawk Hatchling (S/S) with Quills, Conflagrate, and Flame Breath can survive it. Open with the Flame Breath to set Syd on fire; since it's a 100% speed breed, it's going to go before Syd's second-round bubble, so you can go ahead and Conflagrate on turn two, then basically Flame Breath or Quills till Syd's dead. The tri-horn is going to kill the dragon, but a Mechanical Squirrel (Metal Fist, Overtune, Wind-Up) can take out both it and the cow. Wind-Up will pretty much take out the tri-horn right away, but with the cow you may want to Metal Fist when you've got reduced damage to avoid wasting Wind-Up's big damage.
