Critter Battler of Khaz Algar

Bring snail pets such as Mudshell Conch (2,2,1), Prismatic Softshell (2,1,1), and Rapana Whelk (2,2,1) as a reliable team, or use 2-3 rabbits/hares since almost no critters are strong against beasts, making them effective across multiple fights.

Any snail team works for Collector Dyna. Keep your shield up, use Dive on cooldown, and use Absorb to fill between Dive uses. Apply Goo before using Dive for best results.

Bring 2-3 rabbits or hares since almost no critters resist beasts, allowing you to negate most incoming damage throughout this fight.

Use Cobbleshell (1,2,1), Bashful (1,2,2 or 1, 1,1), and Mitzy (1,2,2). Against Flicker use Ooze Touch when not immune and Toxic Smoke when immune, with Stone Form for healing. Against Sir Pounce, spam Toxic Smoke until dead, then use Shell Armor and Quake. Against the Mini Airship, maintain Shell Armor and rotate Ooze Touch or Quake, finishing with Blizzard and Snowball.

Use Bloodfeaster Larva (2,1,2), Cobbleshell (1,2,1), and Juniper (1,2,1) as backup. Against Tickler, open with Acidic Goo then spam Skitter until dead. Against Four-Legs, use Toxic Smoke until Cobbleshell drops to roughly 35% health, then use Stone Form to recover.

You do not need to wait for a world quest to be active to progress this achievement — you can repeatedly challenge any available trainer even after completing their associated world quest.