Like Quintessence, I can't really point at any special stars.
I made a "Basic" team for each family
Basic Aquatic: Two Emperors and a Puddle Terror
Basic Beasts: Anklerender, Spider, Zao
Basic Critters: Rabbit, Snail, Fawn
Basic Dragonkin: 3 Nexus Whelplings
Basic Elemental: P/P Shale Hatchling, Sproutling, PWS
Basic Flying: H/P Bloodbeak, Teroclaw, Pterrordax
Basic Humanoids: S/S Imp, Rotten Little Helper, Idol
Basic Magic: Wisp, Brightpaw, P/P Jade Oozeling
Basic Mechanical: 2 Starlettes and an MPD
Basic Undead: Kid, Bone Serpent, Blighthawk
and those, with a bit of rearranging, easily blew away most of the battles. I would try it once with the Basic team. If I didn't one-shot it, I would see what didn't work, maybe switch in another pet and usually get it the second time.
That, as I say, easily accounted for most of the battles.
And then there were the tough ones. Some of the Family fights on Merayl and Bredda are just not guaranteed do-able, and I wheeled in some specific pets like Tiny Blue Carp
, an Aquatic with a strong attack against Flying, and Lifelike Toad
, a Mech with a heal and a Aquatic attacks, and trust in some RNG.
Pet with avoidance, like Slithershock Elver, MPD, Wisp were necessary on some battles to bypass rounds that would otherwise cause a loss on the spot. My first night against Bredda I did magic last, after bashing my brains to get a 100% strat for Flying, and I was just tired, and I went to XuFu's to suggest my Flying strat, and saw a suggestion at there to try Spectral Tiger Cub
, and that saved me, because the Blind RNG was beating me bad on Bredda Magic.
I think I would nominate S/S Fawn
or P/P Gleamhoof Fawn
for MVP. In battles against Beasts, that type-change and heal was an eye-opener.