Emperor Crab HH (one I had already used previously so was about 80% hp) 211
Strand Crab BB 212 (Didnt need to use but back up)
Molten Crab HH for mechs 111
worked perfectly. Nice to have the Mech killer
The only real RNG on this one is whether you one-man the whole 3 enemy pets with your Shore Crab or not; it is a great strat, a win every time, but i have had a couple of fights where i needed to rely on my second pet to finish off.
Worked great for the first pet for sure. Idk if it's always 2 mechs as backup (pretty sure it's random) but I checked with a team of lvl 1 pets beforehand (to avoid the 10% damage on main team) and arranged my backup pets accordingly and this strat went perfect, only needed one backup pet anyway because crab soloed most of it.