Onix, Aerodactyl, Alakazam, Lapras, Golem, Magneton, Kangaskhan, or Scyther? I am currently at Miasma Moor, Nightlight Nook, Hushed Highlands, and Farside Fjord. Which would help me beat those?
I’ve had a lot of success with Hydro Pump Lapras; Hydro Pump fires several high-damage waves that hone in on enemies, and is in general just one of the best moves in the game. Plus, Lapras has a lot of natural bulk that can allow it to endure a lot of enemy attacks and stall while your teammates recover if they get KO’d.
Although I also want to mention the Machop line. Bulk Up with three Sharing Stones carries you through the entire game on less than half the stages’ recommended power levels. It’s crazy OP.